Playing on:
- Episode 18
- Episode 17
- Episode 16
- Episode 15
- Episode 14
- Episode 13
- Episode 12
- Episode 11
- Episode 10
- Episode 9
- Episode 8
- Episode 7
- Episode 6
- Episode 5
- Episode 4
- Episode 3
- Episode 2
- Episode 1
Choi Young-Jin (Kim Hee-Ae) is a female detective squad chief. She also raises her daughter Ha-Eun. At work, she deals with brutal crimes with her senior detective Park Jong-Ho (Kim Min-Jong) and squad members Min Do-Young (Lee Da-Hee), Han Jin-Woo (Son Ho-Jun), Jo Jae-Deok (Heo Jung-Do) and Lee Se-Won (Lee Gi-Kwang).