Kang Dae-Man sells his comic book store and opens up a private investigator agency without telling his wife. Noh Tae-Soo is a former detective and he now works with Kang Dae-Man at the private investigator agency. They cooperate with Yeochi to launch a full-fledged investigation on a case. As they dig into what initially appeared to be a straightforward case, disturbing new evidences turn up.