Ten years ago, Yoon Ena came home to a nightmare - her uncle murdered and a lone puzzle piece by his side. With no memory of how she got there, she immediately became Detective Hansaem's prime suspect. Driven to uncover the truth, she becomes a criminal profiler to find out if she really was responsible.

Kim Da-mi, Son Suk-ku, Kim Sung-kyun, Hyun Bong-sik, Kwak Ja-hyung, Kim Do-gun