 Maigret meets Nicole while he is investigating on a counterfeit money traffic. Nicole pretends she is in need of help while actually she is laying a snare: she charges Maigret with trying of seducing her. Nobody says the truth because Nicole is the daughter of a very important political man. So Maigret himself is inquired and has to abandon his investigations on the money traffic. But Maigret is not a man to give up.