"Succubus" invites repeat viewings, if only because your first thought upon reaching the final scene will be: What the hell? But that just makes it a perfect '60s Eurotrash time capsule. The beautiful Janine Reynaud (in the book "Sleazoid Express," she's aptly described as a "Gallic Dyanne Thorne") stars as a nightclub performer who has a successful S&M stage show and a hot romance with her manager. She also has dreams that take her to a castle where she wears fabulous Karl Lagerfeld gowns and indulges in pretentious verbal sparring matches that lead to nudity and suggested sex, then murder. But maybe they're not dreams at all. Maybe she does know that mysterious stranger that keeps popping up periodically throught the film. And maybe she is indeed possessed by the devil. And maybe someone wants to kill her. Or, possibly, she's just attended one LSD orgy (complete with a drag queen, a dwarf and a dog puppet) too many. Nevermind. Once you accept the fact that the movie has no plans on becoming coherent, "Succubus" is a lot of fun to watch, the celluloid equivalent of hallucinogenic drugs. Director Jess Franco keeps us entertained by heaping on plenty of atmosphere and artsy camera work while star Reynaud helps out with her screen presence. Though the movie was rated X when first released, it would barely get an R today with its nudity, mostly of the T&A variety, and sex scenes that show the seduction or afterglow but bypass the act itself. The only true sex scene is filmed through a fish tank. Groovy.