The Bird with the Crystal Plumage

An American writer living in Rome witnesses an attempted murder that is connected to an ongoing killing spree in the city and conducts his own investigation, despite him and his girlfriend being targeted by the killer.

• 
  Dario Argento
• 
  Roberto Pariante
• 
  Lida Chitarrini

• 
  Tony Musante
  Sam Dalmas
• 
  Suzy Kendall
  Julia
• 
  Enrico Maria Salerno
  Inspector Morosini
• 
  Eva Renzi
  Monica Ranieri
• 
  Umberto Raho
  Alberto Ranieri
• 
  Renato Romano
  Professor Carlo Dover
• 
  Giuseppe Castellano
  Monti
• 
  Mario Adorf
  Berto Consalvi
• 
  Pino Patti
  Faiena
• 
  Gildo Di Marco
  Garullo
• 
  Rosita Torosh
  Victim
• 
  Omar Bonaro
  Police Detective
• 
  Fulvio Mingozzi
  Police Detective
• 
  Werner Peters
  Antique Dealer
• 
  Karen Valenti
  Tina
• 
  Carla Mancini
  Girl Watching TV
• 
  Bruno Erba
  Police Detective
• 
  Annamaria Spogli
  Sandra Roversi (uncredited)
• 
  Giovanni Di Benedetto
  Professor Rinaldi (uncredited)
• 
  Reggie Nalder
  Needles (uncredited)