AllMovie

Also known as The Eleventh Hour Guest, this French romantic drama is a vehicle for up-and-coming Gallic star Jean Tissier. Posing as a detective, hotshot journalist Tessier crashes a weekend party held by a famous atomic scientist. When the party's host turns up dead, everyone is placed under suspicion and subject to interrogation by phony sleuth Tissier. It is our hero's intention to steal the dead man's secret papers and publish them in his newspaper, but before long he does the right thing by collaring the murderer. L'invite de la Onzieme Heure was filmmaker Maurice Cloche's return to directing after several years in the academic world.