Hanne Mertens

Nora, the wife of the architect Heinz Ottendorf, feels neglected by her husband. He is getting more and more engrossed in his work, but Nora, apparently a stranger to hard work, suspects that the real reason for her husband's diverted attention must naturally be another woman. Robert, the cousin of Nora's friend Marianne, has long been in love with Nora and sees an opportunity to win her hand. Heinz, for all his distractions in his work and the phantom lover he doesn't have, isn't quite ready to let Nora go. While he may be married to his work, his work is a fickle mistress: he makes a career error and this leads to near financial ruin. He begs Nora to be patient with him. Marianne, who for her part is in love with Heinz, spins a web of deceit and intrigue, which leads to Robert taking a potshot at Heinz and then eventually causing Robert to kill himself.

Policeman Haller becomes a fire policeman in Munich, in order to find back his fiancée Hilde. After a while, he really finds her, but she is still jealous because of a dancer Haller flirted with. Also, Haller suspects Wiedemann to be a competitor in his fight for Hilde's heart. Suddenly, Haller finds out that Wiedemann is a criminal and plans to rob the safe of the chemistry lab Hilde is working in. Haller wants to bust Wiedemann alone, but some things happen that make it all much more complicated.