A Sacrifice is an emotionally turbulent story that follows American social psychologist Ben Monroe (Eric Bana) who is investigating a local Berlin cult connected to disturbing events. While he immerses himself in his work, his rebellious teenage daughter, Mazzy (Sadie Sink), becomes embroiled with a mysterious local boy who introduces her to the citys underground party scene. As their two worlds head toward a dangerous intersection, Ben will need to race against the clock in order to save his daughter.