A set of vipers has been taken by the scientists, when the vipers escape into the woods, they do more than just bite.

A college girl, studying abroad in Europe, stumbles upon a murder in progress, orchestrated by a terror cell, putting her life in danger as the main witness.

A girl takes her friends to a house with a dark past for a research project. They unwittingly summon an evil entity with plans of its own who makes the house part of its sinister game.