An internet broadcaster recruits a handful of people for their 'experience the horror' show at Gonjiam Psychiatric Hospital, a place selected as one of the '7 freakiest places on the planet'. They are to explore the haunted asylum and stream it live on their online show.

Sim Deok-soo is a grumpy landlord running a run-down apartment complex. Suddenly his tenants begin disappearing under suspicious circumstances. A retired ex-detective shows up, claiming a serial murderer from 30 years back has returned.