In Knock at the Cabin, Eric (Ben Aldrige) and Andrew (Jonathan Groff) are vacationing with their daughter Wen (Kristen Cui) in a secluded cabin in the countryside. While playing in the woods, little Wen meets mild-mannered Leonard (Dave Bautista). The family’s tranquility then comes to an abrupt end when he, accompanied by three other armed strangers (Rupert Grint, Nikki Amuka-Bird and Abby Quinn), break into the cabin and take the family hostage. The invaders tell their hostages about a mysterious vision and force them to make an unimaginable decision, a sacrifice to avert the impending apocalypse. With limited access to the outside world, the family must decide what they believe in before all is lost: do they really intend to save the world, or are Leonard and his cohorts part of an insane cult?