Crime Puzzle

Renowned forensic psychologist Han Seung-min confesses to murdering a political candidate-the father of profiler Yoo Hee and his former girlfriend. In prison, his confession hides a deeper mystery, and Yoo Hee investigates his true motives and the secrets behind the case.

Forensic psychologist Han Seung-min serves his prison sentence for a political murder while facing danger inside. Profiler Yoo Hee refuses to accept his confession for her father's death and investigates further, uncovering a possible mole and a deeper conspiracy.

A witness links Yoo Hong-su to his father's murder. But political interference and shifting testimony complicate the case. A hidden network emerges, hinting the murder is part of a larger conspiracy.

Police and prison officials investigate suspicious deaths linked to Kim So-yeon and a possible hidden mastermind. Inside prison, Han Seung-min becomes the center of a growing conspiracy involving corruption, transfers, and planned violence. As factions move against him, others debate whether to protect, relocate, or eliminate him before his release.

A mysterious attack on Lieutenant Yoo is linked to a secretive apartment community and a hidden religious group. Han Seung-min plays a greater role and knows more than he lets on, putting him at great risk.

Yoo Hui is back to square one on her investigation and resets her approach, taking Seung-min's warning not to trust anyone seriously. Meanwhile, Seung-min is running out of time and pushes forward with a risky plan to infiltrate the heavily secured Da-4 facility.

As Han Seung-min and Lieutenant Yoo dig deeper into the Ingyo cult case, shocking testimonies reveal the group's brutal past and hidden influence. New clues connect the recent murders to long-buried crimes, while dangerous enemies close in. The investigation uncovers a secret that could expose the truth-and put Yoo's life at risk.

As Lieutenant Yoo's life hangs in the balance, Han Seung-min uncovers disturbing links between multiple unsolved murders and a hidden conspiracy. A dangerous trap closes in, old enemies resurface, and a shocking reunion changes everything. With time running out, the truth behind the killings begins to emerge.

As danger closes in on Han Seung-min inside prison, Yoo Hee races to uncover the truth behind her father's murder. With a deadly trap set and time running out, the final pieces of the puzzle begin to fall into place.

Secrets are exposed and loyalties tested as Seung-min confronts the masterminds behind the conspiracy in a final showdown.