One week before his big wedding day, Jonah and his groomsmen hit the town for a wild night of club hopping and debauchery. The night soon takes a twisted turn for the worse when the group is invited to the seedy underground club, 50 North 40 West, a home to the sexy side of the supernatural. After Jonah frees a seemingly imprisoned dancer, he soon realizes that the woman he has released is actually a terrifying creature of legend that will stop at nothing to claim her man. Jonah and his groomsmen soon find themselves in a deadly fight for their lives as they run from the fabled predator and the men who are determined to recapture her.