Therese, a café owner, mourns the mysterious disappearance of her husband sixteen years earlier. A tramp arrives in the town and she believes him to be her husband. But he is suffering from amnesia and she tries to bring back his memory of earlier times.
Six months before his retirement from the criminal police, inspector Joss finds his colleague Gouvion dead, in a poorly faked suicide attempt. Joss loses his temper, and investigates on his own, which leads him through the bas-fond of Paris...
Mathieu, a member of the French institute in Irkutsk, is arrested overnight by the Russian authorities. Imprisoned and accused of sexual abuse on his own daughter, he realises he is a victim of a Kompromat. With the help of the FSB, someone has built up a case to frame him. Isolated, he has no one to turn to. Proving his innocence is impossible: the only solution is to escape.