A collection of Halloween-themed videotapes unleashes a series of twisted, blood-soaked tales, turning trick-or-treat into a struggle for survival.

An adopted 16-year-old with a mysterious illness learns her bio-tech billionaire parents are harvesting her blood for nefarious purposes.

With only four spots available in a new K-pop supergroup and the final cut a week away, the competition is off the charts. When a talented and mysterious new girl is introduced at the last minute, things start to get strange — girls are being hunted and attacked one by one, but who is responsible for the carnage, and more importantly... who will make the final cut?