Horror Mystery Thriller
An English pianist living in Rome witnesses the brutal murder of his psychic neighbor. With the help of a tenacious young reporter, he tries to discover the killer using very unconventional methods. The two are soon drawn into a shocking web of dementia and violence.
Directed by
Dario Argento
Written by
Dario Argento
Clara Calamai
Marta
Bruno Di Luia
Concerned Man in Restroom (uncredited)
Eros Pagni
Supt. Calcabrini
Furio Meniconi
Rodi
Tom Felleghy
Surgeon (uncredited)
Glauco Onorato
(uncredited)
Salvatore Baccaro
Fruit Vendor (uncredited)
Lorenzo Piani
Fingerprint Cop
Vittorio Fanfoni
Cop Taking Notes
Macha Méril
Helga Ulmann
Fulvio Mingozzi
Agent Mingozzi
David Hemmings
Marcus Daly
Marilù Tolo
Carol (archive footage) (uncredited)
Nicoletta Elmi
Olga
Omero Capanna
Hitman (uncredited)
Gabriele Lavia
Carlo
Daria Nicolodi
Gianna Brezzi
Piero Vida
Fat Cop
Geraldine Hooper
Massimo Ricci
Glauco Mauri
Prof. Giordani
Salvatore Puntillo
Police Agent
Attilio Dottesio
Florist (uncredited)
Giuliana Calandra
Amanda Righetti
Piero Mazzinghi
Bardi
Gianni Di Segni
Rabbi (uncredited)
Jacopo Mariani
Young Carlo
Dante Fioretti
Police Photographer
Mario Pascucci
Library Caretaker (uncredited)
Aldo Bonamano
Carlo's Father
Liana Del Balzo
Elvira
Franco Vaccaro
Pietro Valgoi (uncredited)

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