American mystery author Peter Neal (Anthony Franciosa) comes to Italy to promote his newest novel, TENEBRAE. Unfortunately, a razor-wielding serial killer is on the loose, taunting Neal and murdering those around him in gruesome fashion just like the character in his novel.Cast: Anthony Franciosa, Giuliano Gemma, Christian BorromeoDirector: Dario Argento (1982 • 1h 40m)