Final Sin (1977)

The tone is set early when a masked guy threatens a brunette with a knife outdoors. This isn’t softcore—it’s pure intensity. Later, he restrains her in a living room while another dude watches. The intimacy ramps up in a bedroom setting, where the masked guy dominates her in lingerie under soft, warm lighting. It’s not just about the sex; the power dynamic is clear. The camera work is solid, with close-ups that focus on the tension between them. The restraints and mask add a layer of kink that keeps things edgy.