In the Joseon Dynasty, two friends who grew up together — one the master and one the servant — reunite post-war as enemies on opposing sides.

Set during the late Joseon period, when a strict alcohol prohibition has been enacted.

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.