A chaebol cop joins forces with a gritty detective to take down criminals with a touch of wealth and a whole lot of wit.

Jin Isoo, the naïve heir of Hansu Group, gets into a fight with a stranger and Ganghyun arrests him.

Episode 1

A model is found dead on a yacht. Isoo gets his first murder case and investigates with Ganghyun.

Episode 2

The team finds the key suspect in the model murder case. However, other suspects come to light.

A famous painter has been murdered in an art gallery. Meanwhile, Yi Soo visits his childhood home.

Yi Soo captures the prime suspect in the painter's case, and he learns something unexpected.

The death of an elderly is all but simple. Kang Hyun works to prove it, and Yi Soo seeks other methods.

A bizarre body is found in an office. Isoo and Ganghyun start investigating the mysterious death.

A man is caught at the suspect's house. Isoo investigates the link between the found item and death.

Isoo recovers memories with hypnosis and looks for Myeongchul. Meanwhile, an actress is found dead.

Isoo and Ganghyun discover the actress had a stalker and was harassed by him before her death.

The sudden death of two people affiliated with Oryunhoe. Ganghyun tries to uncover the truth.

Isoo encounters Ganghyun at Oryunhoe, and they face a crisis of being exposed to the cult leader.

An unknown body is found in Myeongchul's backyard amidst the election. Isoo investigates the case.

The team arrests the suspect in the case. Meanwhile, Isoo discovers secrets within the household.

Shocked by unexpected news, Isoo is tormented. Meanwhile, Ganghyun investigates to help Isoo.

Truths start to unfold about his mother's death. Isoo is confronted with an unbearable reality.

While filming a documentary, Isoo receives an anonymous threat: "Detective Jin. Let the game begin."

After a string of attacks, Isoo flees to a safe house. The bomber's final message: "FINAL ROUND."

Isoo and Hyera investigate a haunted house tip. They're attacked and wake up bound inside the house.

Five bodies are found in the abandoned house. Violent Crime Investigation Team 1 begins the hunt.

A concierge is found dead in a hotel room on White Day. Could this be a crime of passion?

While questioning the concierge's murder suspect, the hotel owner disappears. The team gives chase...

A magician dies in a fire onstage. Isoo and Hyera are stunned to meet a man with his exact face.

The boss of the Hammurabi gang emerges as a new suspect. Isoo devises a plan to confront him.

Hyera tells Isoo she's hunting a serial killer. A arts student is found dead in a bizarre state.

With the victim's three friends as suspects, Isoo works to decode the dying message.

Hyera finds Isoo at his house, covered in blood, next to a dead body. The evidence points to him.

A murder suspect is arrested, but another incident breaks out in the holding cell.

The Yu Seongwon case is reopened. Isoo recalls their first meeting and closes in on the truth.

Hyera's on a dangerous mission. Seongwon shows his true colors. When all seems lost, Isoo awakens.