Driving on a deserted highway through the German countryside, Lena arrives at the Rossbergs' remote estate as nightfall descends. Feigning a car accident, she begs for help from the deeply apprehensive Maria, who reluctantly agrees to invite her in. But Lena's plea is a ruse to confront the aged patriarch Anselm Rossberg, a former Auschwitz guard accused of war crimes. Lena's efforts to extract a confession at gunpoint result in a twisted cat-and-mouse game.