Devils Stay (사흘)
"Devils Stay," an upcoming Korean occult horror film, hopes to continue "Exhuma"’s luck of the devil at the box office.
🎬 Teaser trailer (English subs):
🎬 What’s in This Title?: cultureflipper.com/blog/devils-stay-what-s-in-this-title

An exorcism gone awry leads to the sudden death of So-mi (Lee Re), the daughter of heart surgeon Seung-do (Park Shin-yang). So-mi was showing bizarre symptoms, and Priest Ban (Lee Min-ki) had performed an exorcism ritual to drive out the devil inside. During the three days of mourning — a traditionally given time period in a Korean funeral — Seung-do hears So-mi’s voice and notices strange signs in her body. Convinced that she is not dead and that her heart is still beating, Seung-do faces everyone’s disbelief and Priest Ban’s adamant opposition. In three days' time, the truth will reveal itself. The devil may leave So-mi’s body. Or it may stay, having been reawakened through her.