19th-century London psychologist Charles Marlowe experiments with a mind-altering drug. He develops a malevolent alter ego, Edward Blake, who his friend Utterson suspects of blackmailing Marlowe.
- Type
- Film
- Status
- Released
- Release
- November 1, 1971 (53 years ago)
- Language
- English
- Origin
- United Kingdom
- Production companies
- Amicus Productions · British Lion Film Corporation
- Runtime
- 1h 10m
- Rating
- PG
Free
