Set in the Parisian publishing world, an editor and an author find themselves in over their heads, as they cope with a middle-age crisis, the changing industry and their wives.
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.
The result of the small handkerchiefs "Petits mouchoirs", 7 years later. The band, which erupted, is found on the occasion of the anniversary surprise organized for Max.
It is in the corridors of their municipal swimming pool that Bertrand, Marcus, Simon, Laurent, Thierry and the others train under the relative authority of Delphine, former glory of the basins. Together, they feel free and helpful. They will put all their energy into a discipline previously owned by women: synchronized swimming.
