Be a Good Girl.

In an isolated house up in the mountains, Anne leads a strange and obedient life alongside Edgar. Lately, however, she has grown too old for her husband's liking. Determined to replace her, he kidnaps a teenager and brings her home. The girl becomes Edgar's new obsession, setting in motion a twisted game of control and survival, one in which Anne is going to have to decide between protecting the girl or preserving the life she knows.