- HD 1080
- Runtime: 102m.
- Status: Released
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- Languages: it
- Country: Italy
- Director: Renato Polselli
- Stars: Mickey Hargitay, Rita Calderoni, Raul Lovecchio, Tano Cimarosa, Christa Barrymore
- keywords: rape, exploitation, murder, whodunit, doctor
- Production_studio: G.R.P. Cinematografica
- Slogan: More perverted than FRENZY... Bloodier than PSYCHO... More sadistic than BLUEBEARD!
- providers: Full Moon Amazon Channel
- The Delirium is featured in the top rankings of 1972
- #84 in Top Thriller Movies of 1972
- #46 in Top Mystery Movies of 1972
- #95 in Top Horror Movies of 1972
A respected doctor becomes the prime suspect in a series of gruesome murders.