A woman is found murdered in a closed amusement park. A young couple who happen to be there at the same time become, without their knowledge, suspects for the murder. They are chased by a large number of police but only Martin Beck believes them to be innocent.

Two bank robbers hold the clerks hostage and demand 3 million German marks as ransom. What the police do not realize is that the true criminal mastermind watches them from outside the bank, anticipating every move.

West Berlin, 1974. The revolution didn't happen like it was supposed. Grischa, a 30-year-old actress dissatisfied with standard left-wing politics, interviews working women to find out how they deal with being both mothers and members of society.