Confession

Two murders with similar methods and tools occur in 5 years. There is one suspect, Han Jong-gu.

Do-hyeon defends the suspect who insists on his innocence. Chun-ho suggests a deal to Do-hyeon.

Do-hyeon asks Han Jong-gu to confess. After a fierce battle, the final verdict is made.

Do-hyeon takes Jo Kyung-sun's case. Do-hyeon is shocked by the truth as he investigates her case.

Chun-ho gets suspicious about Do-hyeon and Jong-gu's relationship, and secretly investigates them.

After meeting Choi Pil-su, Chun-ho finds circumstantial evidence that the past cases are related.