Kim Nam-Gil

While investigating a terroristic threat that goes viral online, Korean authorities discover that a suspect has recently boarded an international flight bound for the United States. When a healthy passenger on the same flight suddenly dies a gruesome death of unknown cause, panic erupts both in-flight and on the ground. With steadily decreasing fuel and international refusals to offer aid, the captain and crew will be forced to take unprecedented emergency measures to save their passengers' lives.

Byung-soo, a retired serial killer, lives a quiet life with his daughter Eun-hee, who has cared for him ever since his Alzheimer’s diagnosis. When Eun-hee brings home her new boyfriend Tae-ju, Byung-soo realizes Tae-ju is a serial killer too.  To save his daughter, Byung-soo must fight Tae-ju as well as his own mind.