7 1/2 (2013)

After the graduating from his high school, Eun-Ho works at the pizza parlor. One day, he delivers pizza to a guy who lives in a shabby apartment. Jong Kyu, the guy who ordered it, invites Eun-Ho to eat the pizza together. Eun-Ho reluctantly follows Eun-Ho to his room. Eun-Ho finds a female corpse there, and becomes shocked. Jong Kyu turns into a menace, and Eun-Ho has to find the way to escape.