Lena is happily married. From the strange man in the S-Bahn but such a pull goes out that she gets involved in a spontaneous infidelity. The stranger, Martin, also thought that the marriage with his wife was completely safe. Nevertheless, what should actually be written off as an adventure between Lena and Martin is becoming the projection screen for newly created needs and longings. Lena and Martin can not let go of each other.

Young Friedrich is a loner. He doesn't want to work in his father's company later on, he wants to travel the world, become a writer and find the meaning of life. One day, by chance, he meets an old man who is traveling through the country with a strange suitcase. This suitcase is said to contain a kind of machine with which the old man can show people their own truth. Friedrich's life is about to change forever.