Enigma rosso (also known as Red Rings of Fear) is a good Italian thriller shot in 1978 by director Alberto Negrin. A detective investigates a girl’s death and suspects her three college friends. The truth, of course, hides much deeper.
Around the third minute, Christine Kaufmann is lying in bed holding a cat in her arms. The actress is wearing a completely transparent robe, without a bra. When the woman gets out of bed to approach a man, we notice that she isn’t even wearing panties. Eight minutes later, a group of female students run naked to the showers of a boarding school. Among them, we spot Carolin Ohrner, Silvia Aguilar and Taida Urruzola. Seven minutes later, Taida Urruzola meets with a guy and has sex with him in a college hall. A couple of minutes later, the protagonist returns home to find Christine Kaufmann naked, submerged in the bathtub. Twenty-one minutes later, Cecilia Roth walks down the stairs topless. Eleven minutes later we admire a full-frontal nude of Carolin Ohrner.
