The Killer of Dolls (1975)
A groundskeeper's son, who is mentally unstable due to childhood trauma, goes on a murdering spree where his perception of reality is distorted by imagining people as mannequins and vice versa.
A groundskeeper's son, who is mentally unstable due to childhood trauma, goes on a murdering spree where his perception of reality is distorted by imagining people as mannequins and vice versa.