François Marsault, a war veteran, makes the most of his retirement alongside his wife Annie. Authoritarian and ruthless, François rules his family with an iron fist — but when he discovers that his esteemed wife cheated on him 40 years ago, he files for divorce and confronts her former lover, who lives in the French Riviera.

In 1976 in Nice, Agnes, the daughter of the owner of the Palais de la Méditerranée, falls in love with an older lawyer.

In the beautiful South of France, Guillaume is a suicidal Frenchman. Vedrana is slowly dying in a loveless relationship. She is determined to make him love again, but his former fiancée shows up at his doorstep, pregnant with his child.

At her grandmother's funeral, Charlie learns that she already has a place reserved in the family vault. In search of an escape, she herself delivers the crate of disco vinyls her grandmother left to the wine merchant in a village in the south of France. In the deserted seaside resort, the records bring back bitter memories of lost loves. Here, time has a different value, and people are more bored than busy. Charlie only has eyes for Marina, the waitress at the pizzeria. Nothing predestined clumsy, overly sincere Charlie and wounded tornado Marina to mend fences together. But sometimes destiny reunites lost mermaids.