Ji Chang-wook

After spending two years in prison for a crime she didn't commit, Su-young wants the life she was promised, and will stop at nothing to get it.

While driving his kids to school, a bank manager learns a bomb under his seat will explode if anyone tries to leave the car before he pays a ransom.

After the murder of a high school swim instructor, a group of student and teachers are put on lockdown at the school as the killer strikes again.