Franz Woyzeck, a lonely soldier stationed in a provincial German town, is living with Marie, the mother of his child who is not blessed by the church as the child was born out of wedlock. Woyzeck earns extra money for his family by performing menial jobs for the Captain and agreeing to take part in medical experiments conducted by the Doctor. At one of these experiments, the Doctor tells Woyzeck that he must eat nothing but peas. Woyzeck's mental health is breaking down and he begins to experience a series of apocalyptic visions. Meanwhile, Marie grows tired of Woyzeck and turns her attentions to a handsome drum major who, in an ambiguous scene taking place in Marie's bedroom, sleeps with her.