When Jaime, a gay teenager, is sent to live in a community of Jehovah's Witnesses in small-town Quebec, she falls madly in love with a devout Witness girl. The two embark on an intense affair with consequences that will reshape the rest of their lives.

A new mother discovers a lullaby in an ancient book and soon regards the song as a blessing. But her world transforms into a nightmare when the lullaby brings forth the ancient demon Lilith.