Director and writer José María Elorrieta also directed and wrote La llamada del vampiro, The Feast of Satan, and 1001 Nights. Here, Charly Reed (Aramis Ney) is stalking women when he isn’t working in an industrial laundry company. His latest target is Maria Preston (Maria Perschy, The Ghost Galleon), a stewardess who lives with Elena O’Hara (Maritza Oliveras, Curse of the Devil). As she worries about this man constantly showing up in her life, she goes to a therapist, Dr. Palacios (Sancho Gracia), whom she starts dating. 

Soon, Charly breaks into her apartment and touches her. She wonders if she’s just a ghost. No, he’s real, and he’s after you. As for Charly, he was tried for war crimes back in Vietnam and is filled with PTSD that shows up with him burning himself with cigarettes, making out with baby dolls and walking around to take photos of women’s legs Then, he goes to the club and picks up Nicole (Betsabé Ruiz, The Dracula Saga) before he chokes her out with her own scarf and then gets rid of her body with an acid bath.

Maria decides to play detective — so yes, this is a giallo — and follows him home after she sees him carrying a person-sized trunk. There, she finds torn-up photos of herself, hanging baby dolls and a hand sticking out of the acid. Charly does at this point what any of us would: lock her in a room and kill everyone she knows, like running over her doctor lover and choking the life out of Elena in a phone booth.

Charly is the kind of killer you’ll never be on the same side as, despite his issues with war trauma. He’s terrifying looking and shot to be as gross as possible.

Released in Italy as Deviazione and also known as Ghost of Terror.

You can watch this on YouTube.