Death Bell

“One will die for every incorrect answer.”

Yoon Jung-hee (Choi So-yeong) is one of the top students at her high school, sitting extra prep classes before the year-end exams. Then a killer starts putting the students through mind-games, and the only way anyone gets out alive is to answer correctly and save each other. Teacher Hwang Chang-wook (Lee Beom-soo) tries to hold the class together, while director Chang, in his first feature, gives them a single night in which a wrong answer means a death.