Psychological horror is a subgenre of horror fiction that relies on characters' fears and emotional instability to build tension. It typically plays on archetypal shadow characteristics embodied by the threat. Psychological horror aims to create discomfort by exposing common or universal psychological vulnerabilities and fears, such as the shadowy parts of the human psyche which most people repress or deny, whereas splatter fiction focuses on bizarre, alien evil to which the average viewer cannot easily relate. - Wikipedia
Heartless (2010)
The Collector (1965)
Tell Tale (2009)
Séance on a Wet Afternoon (1964) ~ might it under psychological thriller