A minor automobile accident on the eve of New Years, makes Mané (Silvia Pinal), a beautiful girl who was running away after a fight with her fiancée, met Cutberto (Pedro Infante), a mechanic. He can not fix her car and takes her instead to her parents house in Cuernavaca. Once there, after the small talk during the trip, they start drinking and one thing leads to another, so they end up falling asleep in each other's arms. The following day, when her parents arrive, find them together and think the worse of them.
But Mané and Cutberto didn't do anything. Mané's father (Óscar Ortíz de Pinedo) understands perfectly, buy his wife (Doña Sara García) doesn't allow anybody to clarify and decides they will have to marry. Of course the marriage will be dissolved as soon as possible, they will do this to save her reputation.
What nobody expects is that between Mané and Cutberto a little spark changes everything, they fall in love, but with her parents around, things get bad and they end up fighting and thinking they hate each other. Only him can save that relationship... but, is he ready? She's been a little hurtful...
Pedro Infante proves one more time that besides a great singer and actor, he was also a great comedian. Watch ESCUELA DE VAGABUNDOS, and if you watch ROMEO CONTRA JULIETA, do it on your own risk...