Four Flies on Grey Velvet

Rock drummer Roberto Tobias (Michael Brandon), plagued by strange phone calls and stalkers, stumbles upon his tormentor in an empty opera house, leading to a fatal confrontation. After being framed for multiple murders, Roberto seeks help from flamboyant private investigator Gianni Arrosio (Jean-Pierre Marielle). As the investigation unfolds, Roberto's life spirals out of control, including his tumultuous relationship with his wife Nina (Mimsy Farmer) and her dark, traumatic past, which ultimately leads to a shocking revelation.