A stag party of demons looking to top off their night of debauchery with some cigarette smoking use a hell gate to travel from the underworld to Earth.
While Father Natan performs an exorcism on a young girl, a powerful demon leaves her body and enters his, leading him straight to an unsuspecting Boner.
When Marcinek suffers an accident during a painting job and is put on life support, Boner must travel to the afterlife to save him from clinical death.