Martha plot
"A bond marked by fear!"
Martha, a single woman, is on vacation with her father when he dies of a heart attack. Back at home, she takes care of her ungrateful mother, who sees her as an "ugly spinster" and insults her continuously. In the end, she accepts an offer of marriage from Helmut, a man who treats her disrespectfully and violently. Naive as she is, Martha still thinks he will change, but when she meets an old colleague of his, Kaiser, he tells her that Helmut is a real sadist. When she meets Kaiser again, Martha is convinced that Helmut has followed her and will kill her.