Adrien, an attractive dancer whose career was shattered by a motorcycle accident, squanders his youth in idleness. His life changes when he meets Margot, who lives off scams and amorous manipulations.

1981. Hubert Bonisseur de la Bath, aka OSS 117, is back. For this new mission – more delicate, more dangerous and more torrid than ever – he is forced to team up with a young new colleague, the promising OSS 1001.

Victor, a disillusioned sexagenarian, sees his life turned upside down on the day when Antoine, a brilliant entrepreneur, offers him a new kind of attraction: mixing theatrical artifices and historical reconstruction, this company offers his clients a chance to dive back into the era of their choice. Victor then chose to relive the most memorable week of his life: the one where, 40 years earlier, he met the great love.

How did Sarah and Victor get along for more than 45 years? Who was this enigmatic woman living in the shadow of her husband? Love, ambition, betrayals and secrets feed the story of this extraordinary couple, as they experience both the large and small moments of the last century’s history.