: Beth (Hall) is a teacher grieving her husband Owen’s sudden suicide. As she lives alone in the lake house he built, she discovers he was keeping dark secrets involving architecture, the occult, and women who look exactly like her.

If you're watching the psychological horror movie starring Rebecca Hall, here is what you need to know:

Since there are a few different things called "The Night House,"

: It is rated R for violence, disturbing images, and language. There are intense scenes of self-harm discussion and jumping off a cliff. Common Sense Media notes heavy alcohol use by the lead character.