A Killer Paradox: English Summary of Episodes 1 to 8, Plot Twist, Ending Explained and Review 

A Killer Paradox is a mystery thriller Korean drama which premiered on February 9, 2024. It was written by Kim Da-min and directed by Lee Chang-hee.

A Killer Paradox Main Cast Introduction and Release Date

• Choi Woo-shik portrayed the role of Lee Tang: Lee Tang is the main protagonist of this drama; he is a university student who works part-time. As the story unfolds, he realizes that he has a special ability that allows him to sense bad people.

• Son Suk Ku portrayed the role of Jang Nan Gam: Jang Nan Gam is another lead character in this drama, who is a detective.

• Lee Hee Joon portrayed the role of Song Chon: Song Chon is a dangerous man who wishes to join hands with the main protagonist of this drama, Lee Tang.

• Kim Yo Han portrayed the role of Roh Bin: Roh Bin is a guy who spends most of his time in his room. He’s a chubby-looking fellow who wishes to do something for his society, inspired by characters like Batman.

A Killer Paradox Full English Summary from Episode 1 to 6

This thriller series comprises 8 episodes and follows the story of a young university student who discovers he possesses a unique superpower: the ability to instinctively identify and eliminate evil individuals. As he uses this power to dispatch wrongdoers, suspicions from detectives arise. Despite facing numerous obstacles, the protagonist, Lee Tang, manages to evade capture repeatedly.

Episode 1: Unveiling Lee Tang’s First Fatal Move

The episode starts with Lee Tang and his family discussing his wish to work in Canada. We catch a glimpse of his university life chatting with a friend. Then, he starts a part-time job and meets a grumpy customer, but another man, who seems to be his friend, intervenes. Later, on his way home from work, Lee Tang sees the same old man lying on the ground. Thinking he’s drunk, Lee Tang walks past. He informs his friend about the man, but the friend attacks him, triggering memories of past bullying. Lee Tang grabs a hammer from the man’s bag and hits him, accidentally killing him.

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A woman in a yellow dress with a dog stands nearby, but Lee Tang realizes she’s blind. He has a nightmare and wakes up stressed, fearing the consequences. Detectives find food in the plastic inside, and Jang Nan Gam suspects Lee Tang. However, a camera footage obstruction prevents clear evidence. The detectives continue their investigation, questioning Lee Tang again at his workplace. The episode ends with a lady in a yellow dress playing with a dog, with the murder weapon, a hammer, visible in the background.

Episode 2: The Deadly Murder of the Lady in Yellow Dress

In this episode, Lee Tang opens a garbage bin and finds a man with a bleeding head looking at him, but he ignores it. A detective is in a hospital room with his sleeping father. Lee Tang and his mother go to church, then he goes to work. The same girl from the first murder appears as a customer and threatens him for money.

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He starts looking for short-term jobs to pay her. Lee Tang visits a woman in a yellow dress and gives her money to keep quiet. She shows him the murder weapon and demands more money monthly. He takes the hammer and agrees. Feeling her evil vibe, he kills her with it. The dog licks her blood. Later, a delivery man finds her body and calls the police. Meanwhile, the detective finds human bones in a yard. Lee Tang encounters two boys trying to rob him and ends up killing them. He wakes up in his bedroom with blood on his face. The investigation starts at the abandoned land where the bodies are found. Lee Tang discovers a note with a telegram ID offering help.

Episode 3: Double Trouble – Lee Tang gets the Help of Two Mysterious Allies in a Deadly Plot

A group of girls who had too much to drink were in a room. One of them lit a cigarette, which accidentally caused a big fire that exploded through the entire apartment. The scene then shifts to a woman with a scar on her eye from burns, as she commits a terrible act by killing her parents and burying them in her front yard.

This woman in the yellow dress, whose past was tragic, was later murdered by Lee Tang. As a detective investigates the case, he discovers that the woman in the yellow dress has treated people very badly. In another part of the episode, the detective shares a story about a girl who was raped, leaving her father devastated. It turns out that the two men murdered by Lee Tang were the ones who had raped the girl.

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Meanwhile, Lee Tang tries to contact a person whose telegram ID was mentioned in a note he received. Another detective questions the father of a girl who had been raped by the recently murdered men. The father confesses to the murders but later, after repeated interrogation, it’s revealed that he was lying.

We then learn that he had attempted to kill the two men but failed. In a twist, he gets hit by a car outside the police station. The driver of the car turns out to be the mother of one of the murdered boys. In the hospital, the father encounters Lee Tang and warns him to leave due to too many people watching. It’s revealed that the father had brought Lee Tang home after the murder and left him the note. Lee Tang leaves to find his parents. Finally, at the end of the episode, the father converses with another character dressed in a black hoodie with ‘Heroes’ written on it.

Episode 4: Lee Tang and Roh Bin Join Forces

We see a group of people leaving a restaurant after eating. Among them is their drunk boss. He mistakes a man standing nearby as his driver and tells him to get into his car. Later, realizing his mistake, he finds his real driver has arrived, and knowing he’s in trouble begins to panic. Meanwhile, a detective named Jang Nan Gam visits a man named Roh Bin with whom it seems like they know each other. Roh Bin is taken to the police station for questioning, upsetting him.

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Later, Lee Tang meets Roh Bin and they decide to work together. It’s revealed that Lee Tang killed two boys, and Roh Bin feels it was fate for them to meet. It turns out Lee Tang used Roh Bin’s jacket to impersonate him and get into the boss’s car. This shows that both Lee Tang and Roh Bin were involved. Towards the end of the episode, we see a mysterious man inside Lee Tang’s room.

Episode 5: The Tale of Strangling Murder

This episode begins with a young woman working alongside Lee Tang. They are making new ID cards, but Lee Tang is also involved in another murder case. While at another workplace, Lee Tang witnesses a girl receiving a scolding from her boss. She’s dealing with difficulties both at work and in her personal life. Lee Tang and the girl have a conversation while she smokes a cigarette.

Meanwhile, detectives arrive at Lee Tang’s place, pretending to help find their missing son but intending to catch him. The young woman gets into a relationship only to discover her boyfriend’s lies, leading to a heated argument where he ends up killing her. Feeling watched, Lee Tang continues his work until encounters the detective, prompting him to flee. Along the way, he encounters a man, Song Chon, who seems to know him but manages to escape. Later, Song Chon avenges the girl’s death by killing her murderer. As the detectives try to enter the scene of the killing, the door explodes.

Episode 6: Roh Bin’s Tense Encounter with Jang Nan Gam

Every time Lee Tang feels a strange feeling, he tries to avoid it. When he steps into the elevator, that same feeling comes over him, but he manages to escape. One detective ends up in the hospital after an explosion. Song Chon visits Roh Bin’s apartment, hinting at a past connection between them. The injured detective leaves the hospital and encounters Song Chon in a building full of apartments, leading to a violent confrontation where he gets badly hurt and ends up in an even worse condition.

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Jang Nan Gam interrogates Roh Bin, threatening him to speak the truth or face dire consequences. Meanwhile, Song Chon commits another murder. Later, Song Chon and Lee Tang meet in an empty club. On the other hand, Roh Bin tries to assist another group of gangsters but only lands himself in trouble. Lee Tang and Song Chon briefly fight until a gang arrives, aiming to kill Song Chon. Lee Tang manages to escape and helps his friend to flee.

Episode 7: Song Chon’s Dark and Deadly Nature

We see Song Chon in a fight with gangsters. When the police arrive, they find all the gangsters dead. We also see flashbacks of how Jang Nan Gam became protective from his past life with his dad. The investigation team, along with Detective Jang Nan Gam, finds footage from a recorder showing how he escaped and helped his friend, Roh Bin, who was tied up. The police now search for Song Chon. Meanwhile, Song Chon captures the chairman, ties him up, and threatens him to write an apology, then tortures him.

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Just then, Detective Jang Nan Gam arrives with some other detectives. Roh Bin shares his childhood story with Lee Tang. As Song Chon is captured and taken away in a van, he causes a big scene, causing a car accident, and escapes. Roh Bin meets a dentist and plans with two others. As Roh Bin and Lee Tang start their journey, they receive a call from the dentist, but it turns out to be Song Chon, though he doesn’t tell Lee Tang. Song Chon visits Jang Nan Gam’s father. When Jang Nan Gam encounters Roh Bin, he gets a call and rushes out.

Episode 8: The Last Fight – Roh Bin and Song Cho’s Fatal Encounter

In this story, Jang Nan Gam’s dad passes away. Jang Nan Gam, with Roh Bin in the back, drives fast. Meanwhile, Lee Tang rides a scooter away from people, then switches to running, adjusts his muffler, and drives off quickly in a car. Roh Bin meets Song Chon, and then Jang Nan Gam shows up and points a gun at Song Chon. Suddenly, Lee Tang appears, exciting Song Chon. A fight breaks out, and Roh Bin gets shot and dies. Jang Nan Gam shoots Song Chon. Song Chon asks Lee Tang if they’re different and tells stories from the past, angering Jang Nan Gam. In a fit of rage, Jang Nan Gam aims at Lee Tang but shoots Song Chon instead.

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Later, Jang Nan Gam visits a friend in the hospital. An investigation follows, focusing on Jang Nan Gam’s memories with Roh Bin. They revisit the past where Jang Nan Gam tells Lee Tang he thinks they’re different. Lee Sang is seen in the Philippines. Detective Jang Nan Gam gets interrogated about Lee Tang holding his life in his hands. After some years, Lee Tang returns to Korea.

A Killer Paradox Ending Explained

At the end of the drama, Roh Bin and Song Cho die. The detective is interrogated, while Lee Tang moves to the Philippines to start anew, eventually returning to Korea after some years.

Plot Twist in the K-Drama ‘A Killer Paradox’ ?

The plot twist in this show is that Roh Bin betrays Lee Tang, constantly changing sides. In the end, not only does one character die, but Roh Bin also meets his demise. During the interrogation, the detective ensures Lee Tang’s safety instead of putting him in danger, despite actively searching for him throughout the investigation.

A Killer Paradox Review

Cinematography: The cinematography in this drama is gripping, keeping viewers on the edge of their seats with its dynamic camera shifts and atmospheric lighting, which intensify the tension. The rapid yet seamless transitions between scenes add to its captivating allure, making it a truly engaging viewing experience.

Acting: The actors in the drama delivered incredibly realistic performances, complete with dishevelled hair, heavy eyes, and compelling outfits that added to their portrayal. Jang Nan Gam’s mental trauma and Lee Tang’s struggle with his superpower instincts felt genuinely authentic. The fights were meticulously choreographed, and the depiction of bloodshed was expertly executed, keeping viewers engaged and eager to see what unfolds in the next episode.