Darling

Darling is a 2015 American psychological horror film written and directed by Mickey Keating. It stars Lauren Ashley Carter as a young woman who slowly goes insane after becoming a caretaker in a large New York City apartment. It also features Sean Young, Brian Morvant, Larry Fessenden, Helen Rogers, and John Speredakos. It premiered at the 2015 Fantastic Fest and released to limited theatres in the United States and VOD in April 2016.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.