Simon, a Jewish police inspector, arrests Karim, a Muslim, in the bust of a drug smuggling cargo ship, only to realize that Karim is an undercover agent from the military intelligence, whose mission he was not aware of. The two men pursue the narc investigation, which will lead them to confront middle eastern terrorists together.

In 1942 in occupied France, a Jewish refugee marries a soldier to escape deportation to Germany. Meanwhile a wealthy art student loses her first husband to a stray Resistance bullet; at the Liberation she meets an actor, gets pregnant, and marries him. Lena and Madeleine meet at their children's school in Lyon in 1952 and the intensity of their relationship strains both their marriages to the breaking point.