The Sin

A film crew travels to a remote abandoned school to shoot an experimental art movie centered on dance. The production involves the lead actress and her college friend performing geometric routines as part of a shamanistic ritual. The atmosphere shifts when a member of the staff falls from a roof and returns to life as a hostile entity. The group must then fight to survive an onslaught of undead creatures. As the situation worsens, the lead actress discovers she is the primary target of these beings and that they are part of a larger mystery.

Directed and written by Han Dong-seok, this South Korean fantasy horror film features Kim Yoon-hye in the lead role as Si-yeong. The cast also includes Song Yi-jae, Park Ji-hoon, Lee Sang-ah, Kim Bit-na-rae, and Yoon Ha-young. Produced by Door E&M, the movie has a runtime of 102 minutes. Audience reception is mixed, with a rating of 5.3/10 based on 398 votes on IMDb and a higher score of 6.5/10 from 21 votes on TMDB.