Night of the Demons is the story of a crazy party at which the uncommonly hot guests (including Monica Keena, Shannon Elizabeth, and Bobbi Sue Luther) have strange sexual encounters while becoming and un-becoming demons. Lily is turned into a demon by her ex-boyfriend, whose demon-spirit enters Lily through the back door. Yikes. Hijinks like this continue throughout the night, until the demons all die at sunrise.
Diora Baird as Lily in Night of the Demons (2009)