The little gangster Freddie discovers a female corpse while breaking into the house of the dentist Serre. Panicked, he takes flight and goes into hiding. His wife asks Inspector Maigret for help. Thanks to her clues, they soon succeed in locating the dentist's house. But Dr. Guillaume Serre and his mother claim not to have noticed a break-in. Two facts make Maigret suspicious: a newly installed window pane and Madame Serre's surprising trip to Holland ... Based on the 38th novel in the Maigret series: 'Maigret et la grande perche' (1951). In German, the novel was published as 'Maigret and the beanstalk'.