The team gets a call from a blind woman who thinks that her brother has been wrongfully convicted of murders to which he has admitted committing. The case unfurls rapidly, and both San and Gyeo Wool just might be connected.

The same day that Goo Hyung receives an invitation to a class reunion, a former classmate shows up at his door. She wants the gang to solve an old buried mystery, one that could explain some of Goo Hyung's past.