God's Quiz - Season 4 (2014)

The team investigates the murder of a former surgeon who performed illegal surgeries back in the 80s and 90s.

The group tries to find a killer that is kidnapping women and stealing their clean organs. Meanwhile, someone is trying to kill Kyeong-hee.

Jin-woo goes undercover, as an office worker for a local company, in order to look deeper into the cause of death of one of the employees. Kyeong-hee looks deeper into Jae-joon's secret case.

The team investigates the death of a young student at an art school. Jin-woo and Kyeong-hee try to find out who is trying to kill her.

The team investigates the sudden death of a man who is immune to pain.

The team looks into the mysterious death of a famous pianist.

By request, the team looks into a mother who's taken the blame for her son's crime (If that's truly what's going on).

Shi-wu's abduction takes a backseat as attentions converge on pulling elements of the season-long mystery together, starting with bizarre revelations for Jin-woo.

Without proof to bring down the irredeemable criminals legally, the team resorts to dirty tactics in a last ditch, caution-to-the-winds effort to rid the world of them.