Four best friends, Yong-bi, Ji-gong, Sang-woo and Doo-man who just turned twenty and just came of age took the road to Pohang, a small city near the beach—since one of the friends, Sang-woo, is enlisting in the marine corps the day after. On the last day before Sang-woo goes off to the army, a life-changing incident dawns in front of them. The four best friends now face a situation beyond their control, and are forced through an irrevocable day.

Deranged’ follows four girls who go on a bachelorette party weekend to a country house, in rural Spain. Little do they know what someone had planned for them. The real party begins when the host is mysteriously attacked and one by one, the guests find themselves in mortal danger. The race is on to uncover the killer’s identity and they must fight back or be brutally murdered.