Flaminia De Angelis, a cheerful girl from North Rome, is obsessed with fitness and comes from a wealthy background. Under pressure from her mother, she is about to marry Alberto, the son of a diplomat, as a means to climb the social ladder. The arrival of her autistic half-sister, Ludovica, turns her life upside down, and an unexpected event puts everything at risk.
Missing the train is very bad. Seeing it leave with your children and those of your friends you had to accompany on vacation is a whole other story ... that of the crazy pursuit from Turin to Sicily of a father and grandfather as different as they are unreliable.