Dr. Cordelier, living in a suburb of Paris, withdraws from society to pursue research into the functioning of the human brain. His lifelong friend, Maître Joly, becomes concerned when Cordelier…

Police Commissioner Jules Maigret returns to the small village where he spent his childhood at the request of the Countess of Saint-Fiacre, who has received a disturbing anonymous letter.

Etienne Alexis, a candidate for president of the new Europe, is a scientist promoting artificial insemination for social betterment and therapy to eliminate passion. To celebrate his engagement to a…