Heavily based on the true story about the Jonestown massacre, in which more than 900 members of a community committed suicide.
Lily Rabe was the only choice to play Sarah Hope because of her work in American Horror Story (2011) and The Whispers (2015). The director believed she had amazing acting skills when it came to horror.
Ivy George's third horror movie, after Paranormal Activity: The Ghost Dimension (2015) and Krampus (2015).