On Halloween night at a horror theme park, a costumed killer begins slaying innocent patrons who believe that it's all part of the festivities.

A group of teen girls from different backgrounds must fight for survival after a plane crash strands them on a deserted island. The castaways both clash and bond as they learn more about each other, the secrets they keep, and the traumas they've all endured. But there’s just one twist… these girls did not end up on this island by accident.