En el Madrid de los años cincuenta, a lo largo de una jornada cualquiera, ya sea por la casualidad o por el destino, una serie de personajes viven toda clase de anécdotas, historias divertidas y otras no tanto, que se entrelazan en uno de los más bellos parques que existen en la ciudad, el parque de El Retiro, más conocido como Parque de Madrid.

In this comedy Alberto Sordi plays Rosario Scimoni, known as Sasà, an opportunistic and unscrupulous guy, nephew of the mayor of Catania, and he's always ready to take sides with anyone who can help him. He switches from socialism to fascism; he changes his political faith the same way he changes women. He even tries to found his own party.

Andrea Zaccardi has returned home from hunting. He and his wife Luisa are very close. Their young son Giulio develops a cough. The doctor recommends the seaside. Luisa leaves with Giulio for several weeks. Andrea stays to work at the metal shop.

Train operator Andrea Marcocci has to witness the suicide of a desperate man who jumps in front of his train. Under the influence of this shock he starts making mistakes. A check up by a doctor reveals that he's at the brink of becoming an alcoholic. Due to this evaluation he is degraded and must accept a salary cut.