Ten years after discovering her murdered uncle, Ena and Detective Hansaem must cooperate to stop a series of similar murders - each linked by strange puzzle pieces.
Episodes
Episode 1
Detective Hansaem suspects Ena after she fails to remember anything about her uncle's murder.
Episode 2
A puzzle piece arrives on the same day as a murder, and Hansaem suspects it’s no coincidence.
Episode 6
The meaning behind the drawings on the puzzle pieces is uncovered.
Episode 7
Hansaem makes a shocking discovery and becomes unsure of whom to trust.
Episode 9
An unexpected suspect is arrested, shocking everyone involved.
Episode 11
The final puzzle piece arrives will the team be able to catch the killer in time?
Top Cast
Kim Da-mi
Yoon Ena
Son Suk-ku
Kim Hansaem
Kim Sung-kyun
Yang Jeong-ho / Violent Crimes Unit 2 Team Chief
Hyun Bong-sik
Choi San / Violent Crimes Unit 2 Detective
Kwak Ja-hyung
Roh Su-kwang / Violent Crimes Unit 2 Detective
Jang Gyeok-su
Hyeon Ho-geun / Hangang Police Station Chief
Jeong Man-sik
Tae Dong-su / Captain
Ahn So-yo
Yun Go Eun / Criminal Analysis Team Chief
Hong Bi-ra
Byeon Jiyun / Criminal Analysis Team
Kim Doh-yon
Nam Hyeok-su / Criminal Analysis Team
