Two 17-year-olds, Werner Holt and Gilbert Wolzow, are pulled out of school and into Hitler's army. Gilbert becomes a fanatical soldier; but at the front, Werner begins to understand the senselessness of war.

A murder has been committed in "Pension Boulanka", a famous guesthouse for artists and circus people. Captain Bruckner is heading the investigating team.

Carolin lives in the East and works in a West Berlin bar. After the building of the wall she tries to persuade Georg, a soldier of the border regiment, to let her cross over. He falls in love with her and defends her against a West German pimp with a punch to the jaw.