Catherine (Florence Guerin, Faceless, Too Beautiful to Die, Demons 6: De Profundis) is an adult magazine model who is being stalked over the phone. That’s not as bad as some of the other girls she works with. After all, they’re not just getting heavy breathing. They’re getting killed.
Brigitte Lahaie is in this, pretty much a perfect fit for her background. She rose from the X-rated films of France to be recognized by Jean Rollin, who cast her in his films The Grapes of Death and Fascination. This also makes sense as to why Claude Mulot directed this, as the majority of his career was also in adult films. He’d die a few years later in a drowning accident. He also made The Blood Rose, a film so close to a Jess Franco movie that Troy Howarth would say in So Deadly, So Perverse: Giallo-Style Films from Around the World Volume 3, “one would be forgiven for thinking that Franco had made it himself.”
This doesn’t do anything special or different than any other giallo. Both Guerin and Lahaie would make Franco’s Faceless soon after, a much better film.