Hidden Identity (Scripted, Korean)
Genres: Action, Crime, Thriller
Status: Ended
Premiered: 2015-06-16
Ended: 2015-08-04
Network: tvN
Country: KR
Airs on: Monday, Tuesday
Air time: 23:00
Runtime: 65 minutes
Investigation 5 is a new undercover united specialized in fighting dangerous and violent crimes. A team of young and experienced officers under command by Superintendent Jang Moon Won are tasked to infiltrate dangerous crime syndicates with new identities. No back up, but only their wits and poker faces to their disposal, they have to fight crime and complete their missions without revealing their cover.