Die Sonne wärmt die Haut, die sie manchmal verbrennt

Franz becomes involved in an illegal enterprise with Willy, whom he met at a cabaret. Eva and Herbert drop by to see Franz and bring a young woman, Emilie Karsunke, whom they offer as a new lover. Franz and the tender-hearted woman, whom he nicknames Mieze, fall for each other. However, their spell of love is broken when Franz finds a love letter from another man.