Leading police effords to lcoate Dong Jae, Yeo Jin connects the case to that of the dead policeman. Shi Mok pays Yun Jae a visit.

A perplexing photo containing a disturbing message surfaces. The police consider the possibility of the culprit being one of their own.

Shi Mok turns his attention to an unusual case involving the sudden death of a former prosecutor, and finds that nothing quite adds up.