From The Grindhouse Cinema Database
Years before I had heard the actual title or seen this film, I first became aware of Jose Ramon Larraz' Whirlpool from the 42nd Street Grindhouse bible Sleazoid Express. Yep, that's the poster for the movie right on the cover. Needless to say, it depicts one of the most shocking scenes in the movie.
The film stars Karl Lanchbury (Vampyres) as Theo, a young aspiring photographer who lives in a countryside estate with his much older aunt Sara (Pia Andersson). The film moves right into sleazy action as Sara invites a young beautiful fashion model named Tulia (Vivian Neves) to the home. Soon after she and Theo begin their manipulation of the young girl with booze and other substances. Before we know it, they are into a game of strip poker which leads to a sexy menage a trois. Along with participating in this steamy fling, Karl watches and takes photographs of Sara and Tulia as they make love together.
We soon learn that Tulia is not the first girl to be drawn into this web of sexual games by Karl and Sara. A girl named Rhonda (Johanna Hegger) was their last member, but she has mysteriously dissapeared. This brings an unwanted guest in the form of an inspector (Barry Craine) who confronts Karl and inquires about Rhonda's whereabouts. Karl explains that he did photograph Rhonda but she left and flew to Italy which clears him of any suspicion for the time being.
As Tulia spends more time with Karl andSara, she begins to feel unsafe. Her fears are correct as one day Karl and his friend sexually attack her in the woods. Karl takes photos as his buddy rapes Tulia and pulls her clothes off. In more cruelty, the two hop in the car and begin driving away, but then explain it was all a big joke.