A mother lives quietly with her son. One day, a girl is brutally killed, and the boy is charged with the murder. Now, it's his mother's mission to prove him innocent.

From a mountain peak in South Korea, a man plummets to his death. Did he jump, or was he pushed? When detective Hae-joon arrives on the scene, he begins to suspect the dead man’s wife Seo-rae. But as he digs deeper into the investigation, he finds himself trapped in a web of deception and desire.

A maniacal clown named Art terrorizes three young women on Halloween night and everyone else who stands in his way.

When a zombie virus pushes Korea into a state of emergency, those trapped on an express train to Busan must fight for their own survival.