Willi Schulze is a car mechanic. Together with Paul, who escaped from an orphanage, he runs a garage. During the testing of a car, Willi finds out the brakes aren't working that good. A fatal accident can just be prevented. He tries to hitchhike home and gets picked up by American election expert Willy Schneider. Together they also get an accident and both lose their memory. The police assumes Schulze is the election expert and rapidly he turns into the pivot in a stone-hard election-contest.

This romantic drama follows two policemen whose job is to investigate the lives of foreigners who have applied for Swiss citizenship. Among the applicants they must screen are a French psychiatrist and his wife, and a ballet dancer. The married couple are quickly accepted, but the dancer's life offers some objections. However, since the younger policeman has fallen in love with her, there is a chance that she, too, will win Swiss citizenship.