Kim Da-mi
Yoon Ena
Son Suk-ku
Kim Hansaem
Kim Sung-kyun
Yang Jeong-ho
Hyun Bong-sik
Choi San
Kwak Ja-hyung
Roh Su-kwang
Jang Gyeok-su
Hyeon Ho-geun / Hangang Police Station Chief
Jeong Man-sik
Tae Dong-su / Captain
Ahn So-yo
Yun Go-eun
Hong Bi-ra
Byeon Ji-yun
Kim Doh-yon
Nam Hyeok-su
Lee Joo-young
Nam Na-ri
Park Gyu-young
Lee Seung-ju
![Official Trailer [Subtitled]](https://img.youtube.com/vi/-UKrjg6RrjI/hqdefault.jpg)
May 21, 2025 - 54m
Detective Hansaem suspects Ena after she fails to remember anything about her uncle's murder.
May 21, 2025 - 50m
A puzzle piece arrives on the same day as a murder, and Hansaem suspects it’s no coincidence.
May 21, 2025 - 52m
Ena and Hansaem warily work together to solve the case.
May 21, 2025 - 1h 2m
A prime suspect emerges, but things aren't what they seem.
May 21, 2025 - 57m
Another puzzle piece arrives, and a new murder case unfolds.
May 21, 2025 - 58m
The meaning behind the drawings on the puzzle pieces is uncovered.
May 28, 2025 - 53m
Hansaem makes a shocking discovery and becomes unsure of whom to trust.
May 28, 2025 - 51m
As the investigation escalates, new suspects begin to emerge.
May 28, 2025 - 49m
An unexpected suspect is arrested, shocking everyone involved.
Jun 4, 2025 - 49m
A stunning truth behind the serial murders is revealed.
Jun 4, 2025 - 50m
The final puzzle piece arrives will the team be able to catch the killer in time?
