After inheriting a new summer home from a deceased relative, Fernando brings his family along for a vacation. They quickly discover strange happenings on the property, but when young daughter Gaby falls into a well and returns with an old doll, things take a turn for the horrific.

On his 17th birthday, a boy named Michael has a surprise party thrown by his friends, where a session with a Ouija board accidentally unleashes a demon named Virgil, who possesses one of them to go on a killing spree. Michael, now plagued by violent nightmares and premonitions, sets out to try and stop the killings.