Jesús Franco – Botas Negras, Latigo de Cuero (1983)
Al Pereira is hired by Lina (Candy Coster, who is Lina Romay in a blonde wig, so Lina playing Candy playing Lina), the wife of a wealthy man, to recover some compromising photos. She has sex with him by way of a retainer. In the course of his investigation, Al is obliged to commit a couple of murders… and he’s left holding the bag when Lina turns out not to be what she seems to be.
Spanish TV rip with English fansubs