Altered Minds (2006)

A high class sex slave owned by a wealthy and powerful man escapes his pervasive jealous and controlling behavior by exploring the decadent fantasies of her subconscious with her evil doppelganger. The further she allows herself to slip into her wanton daydreams the more control she loses until she eventually gives herself over entirely to the darkest elements of her libido in an attempt to gain her freedom.