Set in 1955, French secret agent Hubert Bonisseur de La Bath/OSS 117 is sent to Cairo to investigate the disappearance of his best friend and fellow spy Jack Jefferson, only to stumble into a web of international intrigue.
In the morning, two friends, a producer and an actor, discover the corpse of a young woman who accompanied them the previous night. The shooting of the day is not going to go as planned at all.
