Diary of a Sinner

A troubled writer, haunted by visions and nightmares, becomes convinced that his wife is trying to kill him. As his paranoia escalates, he delves into his own past and begins to suspect that a mysterious cult might be involved in a plot against him. The line between reality and delusion blurs as he desperately seeks the truth before it's too late.

Diary of a Sinner, also known as 'The Psychic Killer', received a mixed to negative reception upon its release. Critics often pointed to its convoluted plot and underdeveloped characters, though some acknowledged its atmospheric tension and Peter Cushing's performance. Audiences found the film to be a confusing and at times ineffective thriller.

• The film struggles with a confusing and disjointed narrative.

• The horror elements are often unconvincing and lack genuine scares.

• Peter Cushing's presence is a highlight, but not enough to save the film.

Google audience: Audience reviews are scarce, but those available suggest a general disappointment with the film's plot and pacing, with some finding it a forgettable thriller.

The film was also released under the title 'The Psychic Killer' in some regions, likely to capitalize on the popularity of occult and psychic-themed horror films of the era.