Two young people's bond leads to marital infidelity and ultimately crime. Fanny and Jean have everything of an ideal couple: fulfilled in their professional life, they live in a magnificent apartment in the beautiful districts of Paris and seem to be in love as on the first day. But when Fanny crosses, by chance, Alain, a former high school friend, she is immediately capsized. They see each other again very quickly and get closer and closer.

In the heart of Morvan, Nico, the last vet in the area, struggles to save his patients, his clinic, and his family. When Michel, his partner and mentor, announces his retirement, Nico knows that the hard part is yet to come. "Don't worry, I've found the next generation" Except that ... The next generation is Alexandra, a 24-hour graduate, brilliant, misanthropic, and not at all willing to return to bury herself in the village of her childhood. Will Nico manage to make her stay?