Chief Inspector of Parisian origin, Maigret is at an exhibition. A serial killer terrorizes the Montmartre district of climate and Maigret is pressed by the Inside Ministry to search out it earlier than the victims to breed. The issue is that these crimes don’t observe a selected sample. Till now, the killer attacked a prostitute, a midwife, a clothier, a clerk on the submit workplace and a younger mom. Don’t go away behind witnesses not make errors. With reputations at stake, Maigret devises a determined plan. Satisfied that delight is the best weak point of the killer, Maigret enacts an arrest in hopes it will likely be in a position to catch him. Put 12 volunteers on the road and ready for an assault.