Maigret Sets a Trap by Georges Simenon
Five women have been found stabbed to death in the Montmatre district of Paris and the killer is still at large; desperate, angry and exhausted, Maigret sets a trap for the killer - with terrible consequences. Set in the cafes, bars and busy streets of Paris in a blazing heat wave, Maigret's nerve and judgement are tested to the full as he uncovers the grotesque logic of a folie a deux.