Maigret's Dead Man: Inspector Maigret, Book 29 (Unabridged‪)‬

That shoeless foot looked incongruous lying on the pavement next to another foot encased in a shoe made of black kid leather. It was naked, private.... It was Maigret who retrieved the other shoe, which lay by the kerb six or seven metres away.

A series of strange phone calls leads Inspector Maigret through the Paris streets towards a man out of his depth amid a network of merciless criminals.