Boileau-Narcejac is the nom de plume used by the prolific French crime-writing duo of Pierre Boileau (April 28, 1906 – January 16, 1989) and Pierre Ayraud, aka Thomas Narcejac (July 3, 1908 – June 7, 1998). Their successful collaboration produced 43 novels, 100 short stories and 4 plays. They are credited with having helped to form an authentically French subgenre of crime fiction with the emphasis on local settings and mounting psychological suspense. They are noted for the ingenuity of their plots and the skillful evocation of the mood of disorientation and fear. Their works were adapted into numerous films, most notably, Les Diaboliques (1955), directed by Henri-Georges Clouzot, and Vertigo (1958), directed by Alfred Hitchcock.