Season 1

May 21, 2025

Detective Hansaem suspects Ena after she fails to remember anything about her uncle's murder.

May 21, 2025

A puzzle piece arrives on the same day as a murder, and Hansaem suspects it’s no coincidence.

May 21, 2025

Ena and Hansaem warily work together to solve the case.

May 21, 2025

A prime suspect emerges, but things aren't what they seem.

May 21, 2025

Another puzzle piece arrives, and a new murder case unfolds.

May 21, 2025

The meaning behind the drawings on the puzzle pieces is uncovered.

May 28, 2025

Hansaem makes a shocking discovery and becomes unsure of whom to trust.

May 28, 2025

As the investigation escalates, new suspects begin to emerge.

May 28, 2025

An unexpected suspect is arrested, shocking everyone involved.

June 4, 2025

A stunning truth behind the serial murders is revealed.

June 4, 2025

The final puzzle piece arrives will the team be able to catch the killer in time?