Karma Review: Netflix's Six-Episode Thriller Is One of Korea's Best Limited Series of 2025

Netflix's Karma arrived on April 4, 2025 without the pre-release anticipation that typically precedes a major Korean streaming event. There was no extended global campaign, no elaborate press tour, and the promotional materials — spare, visually cold, and deliberately non-revelatory — gave little indication of what the six-episode series was actually about. Within three days of its global release, it had accumulated 19.3 million viewing hours. By the end of its second week, it had reached the Top 10 in 37 countries across four continents, climbed to number two on Netflix's global non-English series chart, and secured number-one positions in South Korea, Indonesia, the Philippines, Thailand, Vietnam, Malaysia, Hong Kong, and Bangladesh. Rotten Tomatoes had it at 83 percent. IMDb at 7.6. Critics were using phrases like "one of 2025's standout series" and "grounded, character-driven thriller that respects audience intelligence." The series had arrived without fanfare and achieved the kind of word-of-mouth driven organic growth that streaming platforms spend billions of promotional dollars trying and failing to manufacture.

Karma is adapted from the Kakao Webtoon "Ill-fated Relationship" by Choi Hee-seon, serialized on Daum Webtoon from 2019 to 2020 and accumulating 10 million views before Kakao Entertainment partnered with Moonlight Film and Baram Pictures to develop it as a television series. The adaptation was produced by the same Baram Pictures that had been behind Kingdom: Ashin of the North, Song of the Bandits, and Castaway Diva — a production company with a specific facility for narratively dense genre material that worked across prestige streaming and commercial K-drama registers simultaneously. What distinguished Karma from the beginning was its creative team structure: Lee Il-hyung wrote and directed the series himself, a rare configuration in an industry that typically separates the two roles, and approached television with the cinematic sensibility of a film director making his first transition to the long-form format.

The Cast: Six Characters With Dangerously Flexible Morality

Karma's ensemble is built around six characters whose moral compasses have been bent by circumstances into shapes they themselves don't fully recognize. Park Hae-soo leads as the central protagonist — a man whose path into the series' central conspiracy begins with an attempt to escape financial ruin and escalates through decisions that he continues to rationalize long past the point where rationalization is possible. The casting of Park Hae-soo was commercially significant: his role as Cho Sang-woo in Squid Game had established him as one of Korean television's most recognizable faces for international audiences, and comparisons between the two projects were inevitable. The comparisons were not inaccurate — financial desperation, moral failure, and the specific way that survival pressure reveals character — but they understated how different the dramatic architecture was. Squid Game was built around competition. Karma was built around consequence.

Shin Min-a plays Lee Ju-yeon, a traditional medicine doctor whose relationship to the series' central events is revealed gradually across the six episodes in a way that recontextualizes her character's apparent normalcy as a form of sustained, purposeful suppression. The revelation of Ju-yeon's connection to the series' other characters — and to the act of violence that damaged her years before the narrative begins — constitutes the series' emotional spine. Shin Min-a handled the role's particular demand: projecting stability over damage, warmth over watchfulness, without the concealment becoming either schematic or obvious. The performance's restraint is what made the eventual disclosure land.

Lee Hee-joon plays Park Jae-yeong, a man so thoroughly crushed by debt to a loan shark that he has arrived at a place where ordering a killing seems like a rational solution to an impossible problem. The character's desperation is not presented as villainous — Lee Hee-joon's performance kept the character in a register of terrified practicality that was deeply uncomfortable precisely because it remained sympathetic even as it became monstrous. Lee Kwang-soo plays the series' central dramatic irony: a witness to an accident he did not cause, whose panic about implication drives him into complicity that makes him indistinguishable, eventually, from the people whose crimes he stumbled onto. Kim Sung-kyun, Gong Seung-yeon, Kim Nam-gil, and Cho Jin-woong complete an ensemble in which the loan shark played by Cho Jin-woong functions as the narrative's gravitational center — the figure around whom everyone else's moral failures orbit.

Lee Il-hyung: The Film Director Who Brought Cinema to Television

The most distinctive quality of Karma as a visual and narrative object was its cinematographic discipline — the cold, muted tonal palette, the extended use of shadow, the close-up compositions that placed character psychology in frame rather than environmental context. These were the marks of a director accustomed to working in feature film, where individual shots carry more compositional weight because there are fewer of them. Lee Il-hyung had directed A Violent Prosecutor in 2016 and Remember in 2022 before making his television debut with Karma, and the transition showed in the best possible way: the series moved at a pace that serialized K-drama rarely sustains, with scenes that were allowed to develop fully rather than cutting away the moment information had been conveyed.

The decision to write and direct the series himself — a configuration that Korean television's division of creative labor generally discourages — gave Karma a tonal consistency that co-productions between separate writers and directors frequently fail to achieve. The gap between what the script intends and what the direction realizes is one of the more common sources of tonal unevenness in Korean television drama. When the same person holds both functions, that gap closes. In Karma, the visual language and the narrative architecture spoke the same language throughout: a language of controlled revelation, deliberate withholding, and the aestheticization of moral consequence.

The webtoon source material provided a structural foundation that Lee Il-hyung's adaptation maintained while transforming its format. Choi Hee-seon's original "Ill-fated Relationship" had been episodic in the digital chapter format, with individual updates that each developed a piece of the larger puzzle. Lee Il-hyung translated this into six television episodes that initially appeared to follow separate characters — each episode titled for the character at its center — before converging in the third episode in a way that required viewers to reconsider everything they thought they had understood about the characters they had been following. The structural gambit was not new to Korean thriller drama, but it was executed with an economy that distinguished it from series that used non-linearity primarily as misdirection rather than as revelation.

The Karma Concept: Six People, One Accident, Irreversible Consequences

The premise of Karma is deceptively simple: six people's lives become entangled after a single catastrophic accident in the fictional town of Guhoe. A man orders the death of his father to claim life insurance. The person hired to carry out the job crosses paths with another character who has witnessed an accident and panicked. A traditional medicine doctor discovers that the childhood trauma she thought she had left behind is directly connected to the people converging around her. A black market surgeon is working for the loan shark to pay student debt. The loan shark's hold over multiple characters creates the axis around which the separate storylines spiral toward collision.

The title's thematic work was legible throughout but never heavy-handed. The series did not lecture about karma as a concept; it demonstrated it structurally, showing how each character's choices created conditions that made other characters' subsequent choices more constrained, more desperate, and more likely to produce further harm. The chain of causation that connected the series' inciting accidents to its final consequences spanned years, and the non-linear structure's function was to make the audience experience the connections as revelation rather than simply as plot information. By the time the series disclosed that Ju-yeon, Yu-jeong, Jae-yeong, and Beom-jun had all grown up together in Guhoe, the disclosure had the quality of an answer to a question the audience had not yet fully formulated. That quality — the sense that the story had always been heading toward this convergence — was the series' primary formal achievement.

The ending — in which Ju-yeon chooses not to kill Beom-jun, walks away, and is last seen leaving a hospital in falling snow — was unusual for a thriller of this type in its refusal of either moral satisfaction or moral nihilism. Five of the six major characters were dead. The only survivor had survived by choosing differently than the circumstances seemed to demand. Whether this constituted hope or simply a more refined expression of the series' central thesis — that the only way to interrupt the karmic cycle is to refuse to continue it — was a question the series left genuinely open. The ambiguity was deliberate and well-calibrated: the ending felt earned rather than inconclusive.

Netflix Performance: 37 Countries, No Fanfare

The commercial arc of Karma's Netflix performance — from a relatively quiet premiere to a top-two global chart position in its second week — was one of the cleaner examples in 2025 of what the streaming industry's content analysis teams call "slow burn" performance: a title that does not explode into prominence immediately but builds through organic viewer-to-viewer recommendation as audiences discover it, finish it, and tell others about it. The mechanism was well-suited to a series structured around gradual disclosure: viewers who did not know what the series was before they started watching often found themselves unable to stop, and the completion rate — the percentage of viewers who began the series and watched all six episodes — was reported to be unusually high by Korean drama standards.

The geographic distribution of the Top 10 performance was characteristic of Korean thriller drama's particular international appeal. The Asian markets — South Korea, Indonesia, the Philippines, Thailand, Vietnam, Malaysia, Hong Kong, Bangladesh — delivered the number-one rankings that made the headline performance data striking. But the presence in Top 10 lists across Latin America, Eastern Europe, North Africa, and sub-Saharan Africa reflected a breadth of reach that could not be attributed solely to the concentrated K-drama fandoms of Southeast Asia. The series was finding audiences in places where Korean drama was still a relatively novel discovery rather than an established consumption habit, which suggested that the series' genre accessibility — the thriller format, the universally legible themes of debt, desperation, and consequence — was generating discovery beyond the organized K-drama viewing community.

Netflix's April 2025 non-English chart was, for a brief period, dominated by Korean content to a degree that drew media attention as a data point in K-drama's ongoing global expansion. Five Korean titles simultaneously in the global Top 10 was not unprecedented, but the concentration was striking: it reflected both the density of high-quality Korean drama being produced for streaming platforms and the degree to which Korean thriller and drama content had become a genre category in its own right for international streaming audiences, rather than a national or cultural category that required prior familiarity to access.

The Blue Dragon Series Awards and Industry Recognition

The Blue Dragon Series Awards — the Korean film industry's extension of its traditional cinema recognition into the streaming and serialized television space — nominated Karma across four categories: Best Drama, Best Actor for Park Hae-soo, Best Supporting Actress for Gong Seung-yeon, and Best Supporting Actor for Lee Kwang-soo. The nominations represented the industry's formal acknowledgment that the series had achieved the standard of production quality and narrative craft that the Blue Dragon platform recognized as worthy of competition against other significant releases of the year.

The Park Hae-soo nomination in particular carried commercial weight given the Squid Game comparison context. That the award body did not treat Karma as merely a Squid Game extension — nominating Park Hae-soo as a lead actor in a distinct work rather than as the ongoing beneficiary of his most prominent prior credit — reflected both the series' independent quality and the industry's recognition that Park Hae-soo had delivered a performance with its own merits rather than simply reprising the qualities that had made him famous.

The Gong Seung-yeon nomination acknowledged one of the series' formally interesting character constructions: Lee Yu-jeong, the character whose superficial warmth concealed a moral flexibility that revealed itself slowly, was the character whose narrative function was to embody the series' central thesis about how people justify themselves to themselves while doing harm to others. The supporting actress category designation understated the character's structural importance; Gong Seung-yeon's performance was central rather than supplementary to the series' thematic argument. The nomination, framed as supporting, was still recognition of performance work that the series could not have succeeded without.

Kakao Entertainment's Webtoon Adaptation Pipeline

The production context for Karma — Kakao Entertainment adapting a Kakao Webtoon through Baram Pictures, with Netflix as the global streaming partner — represented a specific configuration in the Korean entertainment industry's increasingly formalized webtoon-to-screen pipeline. The pipeline had become commercially significant enough by 2025 that the major Korean entertainment conglomerates had developed systematic approaches to identifying webtoon properties with adaptation potential, acquiring rights, and developing them through either their own production infrastructure or through third-party production companies with established track records in prestige streaming content.

Kakao Entertainment's position in this pipeline was distinctive because of the integration between its webtoon platform (Kakao Webtoon, previously Daum Webtoon) and its production and distribution infrastructure. "Ill-fated Relationship" had accumulated 10 million views in its original digital form — a significant number that provided useful evidence of the property's narrative appeal, even if the webtoon audience and the Netflix audience were not directly comparable in scale or consumption habits. The adaptation process involved substantial narrative restructuring: a serialized digital comic that was read in short-form chapters does not translate directly into six 45-to-53-minute television episodes, and Lee Il-hyung's adaptation decisions — the non-linear structure, the episodic-to-convergent narrative movement, the specific character emphasis — reflected genuine creative choices rather than simple format conversion.

Park Hae-soo Beyond Squid Game: A Star Establishing Independent Range

The commercial significance of Karma for Park Hae-soo's career trajectory was the demonstration that his international recognition could be leveraged for projects that were not dependent on the Squid Game framework or on recurring expectations from that project's global fanbase. Squid Game had made him a recognizable face in markets where Korean drama was otherwise marginal; Karma was the test of whether that recognition could generate independent viewing decisions — whether international audiences would choose to watch him in something new rather than simply as a continued expression of their investment in the original property.

The Netflix chart performance indicated that the test was passing. Viewers in markets outside East and Southeast Asia — in Latin America, in Eastern Europe, in markets where Squid Game's impact had been broadest — were finding Karma in numbers that exceeded what the series' marketing profile would have generated for an unknown cast. Park Hae-soo's name recognition was functioning as a discovery mechanism for the series, bringing viewers in who then stayed for the narrative quality. That dynamic — star recognition generating initial sampling, narrative quality generating completion and recommendation — was the ideal commercial arc for a limited series with no sequel potential and no franchise framework to fall back on.

Verdict: Korean Thriller's Evolution in the Streaming Era

The comparison to Squid Game that followed Karma throughout its promotional and critical life reflected both the Korean thriller genre's commercial success and the way that success had shaped international audiences' expectations for what Korean drama in that register could do. The comparison was accurate in its identification of shared concerns — financial desperation, the erosion of moral principles under survival pressure, the way that Korean social structures create specific forms of debt and obligation that function as both material reality and thematic material. It understated the formal and tonal differences: Squid Game was maximalist, operatic, and built around a competition framework that generated suspense through elimination. Karma was minimalist, clinical, and built around a revelation framework that generated suspense through disclosure.

Both approaches were valid expressions of what Korean thriller drama had become capable of producing in the streaming era. The six-episode limited format that Karma used — which had been a prestige television standard in the West for years but remained relatively unusual in Korean drama production — suited the series' specific kind of narrative: dense, interconnected, built for a viewer who was going to watch sequentially and closely rather than casually. The format choice was a creative statement about the story's requirements, and the Netflix performance demonstrated that audiences would engage with Korean limited series at the same level of investment they brought to the longer formats that Korean drama had historically favored.

For Lee Il-hyung, Karma represented both a successful transition from film to television and a demonstration that the transfer of cinematic craft to serialized streaming content was possible without compromise in either direction. The series did not feel like a film that had been stretched; it felt like a television story that had been given the visual and narrative precision that cinema's production standards demanded. That combination — television's structural affordances with cinema's craft standards — was what the best prestige streaming content aspired to, and what Karma achieved. In April 2025, without fanfare, the series set a standard for Korean streaming thriller that subsequent productions would be measured against.

The Moral Architecture: Why Every Character Gets What They Deserve

One of the elements of Karma that generated the most sustained critical discussion was its treatment of consequence — specifically, the precision with which the series calibrated each character's fate to their specific moral failures rather than distributing punishment arbitrarily or according to the conventional thriller logic that assigns death to whoever has served the plot's need. Five of the six central characters were dead by the series' end. But the deaths were not equivalent in their moral logic. The loan shark died because the system of predatory finance he represented had created conditions in which violence was always the logical endpoint. Jae-yeong died because the plan to kill his father had always contained within it the seeds of his own destruction. The witness died because his attempt to escape responsibility for an accident he had not caused drove him to actions that made him genuinely culpable.

The series' most careful moral accounting was in its treatment of Yu-jeong, whose revelation as the architect of the violence done to Ju-yeon recontextualized her apparent warmth throughout the series as a form of practiced manipulation rather than genuine connection. The karmic logic that her fate embodied was the series' clearest statement of its central thesis: that the harm people do in concealment never remains concealed, that the past does not stay past, and that the relationships built on the suppression of what one has done are structurally unstable in ways that eventually become visible. Yu-jeong's collapse was not simply a plot reversal; it was the formal expression of the series' argument that concealment is not the same as resolution.

Ju-yeon's survival, and the specific quality of that survival — her choice to walk away rather than to complete the act of revenge — was the series' most complex moral statement. She was not rewarded for her choice in any conventional narrative sense: there was no reconciliation, no restoration, no return to a life unmarked by what had happened to her. What she achieved was something more particular and more difficult to dramatize: the capacity to move forward without the act of revenge that would have completed the cycle, and without the pretense that anything had been resolved. The hospital exit in falling snow was not an image of triumph. It was an image of continuation — of a person who had survived her own karma and chosen to keep living rather than to finish the violence that violence had originated. In a thriller built around the certainty that every action produces consequences, the choice not to act was itself a consequence of everything that had preceded it.