Cleaning plans, empty beer crates and an exploding coffee machine are the least of the problems in the Kreuzberg shared apartment of Julian Meier, Kasimir Müller and Max Schmidt - the three boys couldn't be more different.

More than fifty years have passed since Harry left his great love Elly head over heels to go to America. Now he has returned to see her again - and must discover that she lives as a nun in a Protestant monastery. At first she refuses to contact him, the pain is too deep that he has not been alive throughout the years. Only when she learns the true reason for his supposed silence does she let Harry back into her life. With the memory of the past times, the two also return to the old feelings. Elly gets into a deep moral conflict

Psychotherapist Fred Czerny is finding it difficult to retire. So he shares his busy practice in Munich with Ted Fröhlich, an advocate of modern, holistic therapy methods. They are soon joined by Helen Cordes, who no longer wants to wear herself out in a psychiatric clinic. The three shrinks soon find themselves under psychological stress with patients and their own private lives.

The shy late twenties Torsten tile lives with his mother in a bleak Berlin slab. In the guise of his alter ego "Lux - Warrior of Light" he tries to make the world a little bit better. He distributes food to the homeless and helps out on his forays through the city wherever he can. A film crew accompanies him to make a documentary about the social engagement of the self-appointed real-life superhero. Jan, the director, is still looking for a donor. The resourceful producer Brandt shows interest, but on condition that he sees something spectacular.