Eugenio asks his best friend, Federico, a wealthy lawyer, to take care of his son Titín while he deals with a family problem related to Elvira, his wife; but Federico, a single man, knows nothing about babysitting, so he begs Clarita, his secretary, to help him… (Film partially lost. Only 65 minutes of footage remain of the original 91; but this circumstance does not prevent the understanding of the plot.)