A young composer is forced to work as a bar pianist. One night he gets hit by a car and is brought to a hospital. Severely injured he is injected with morphine. He becomes addicted.

A building, a landing, two tenants: he, Jacques Loursier, is president of the U.R.A.F (Union and Resistance Anti-Woman); she, Eliane Cahuzac, is president of the Association for the Triumph and Independence of Women. Unaware of each other until then, a cold war begins between the two parties. An attempt at conciliation fails then, after many adventures, love triumphs.

In Marseille, crime squad captain Dominique fights against racketeers and tries to put a young man back on the right track.

In her small village in Vendée, Ludvine, an orphan, is in love with Jean-Pierre, but he is jealously guarded by her woman employer. On the day of the "Fair of Women", a traditional event where young men can choose the girl they fancy, Jean-Pierre picks out Ludvine.