Tanya, having heard from her girlfriends about an unusual rite, decides to summon a mystical creature as a joke. Rumor has it that when the incubus Boon appears, it causes "sleep paralysis" - a phenomenon that is familiar to many, when the heat does not obey and wake up can not, no matter how much you want to. Then the sleeper is in his power, and Boone can do with him, anything. The first to die from the cruel monster is Tanya's friend.