Jeder hat seine Geschichte(1965)

The girl Lore had run away from him. Now Heiner had met and fallen in love with Susanne. In the first few days of their acquaintance, Heiner couldn't believe his luck. Because Susanne, like Lore, was a beautiful girl - no, she was actually more beautiful than Lore, and he was afraid that she might run away from him, just like Lore did back then. But Heiner had learned from experience and now knew what to do to get a girl to stay with him. Heiner, whose story is told here, is a 19-year-old young man. He was alone for a long time, had an old apartment with two rooms, a kitchen and even an indoor toilet in the center of Berlin. There is nothing extraordinary about Heiner's life, but for him the longing for happiness is crucial, and that is why he wants to do a lot to achieve it.