Vicenta (Gracita Morales), una pueblerina que llega a Madrid para trabajar de sirvienta, no tiene suerte y no termina de establecerse como empleada en ninguna casa decente. En una visita al médico se enamora locamente de su hijo y por ello decide quedarse a trabajar en su casa, pero el muchacho (José Sacristán), pese a las atenciones de Vicenta, no parece corresponderle. Mientras tanto, Manolo (José Luis López Vázquez), un primo de Vicenta que trabaja como enfermero, se dedica a embaucar a varias muchachas trabajadoras que le entregan su sueldo todos los meses porque les ha prometido comprar un piso antes de casarse con ellas.br Vicenta (Gracita Morales), a country girl who arrives in Madrid to work as a maid, has no luck and can't seem to find a job in any decent household. During a visit to the doctor, she falls in love with his son and decides to stay and work in his house, but the young man (José Sacristán), despite Vicenta's attention, doesn't seem to reciprocate her feelings. Meanwhile, Manolo (José Luis López Vázquez), Vicenta's cousin who works as a nurse, swindles several working girls who hand over their wages every month because he has promised to buy them an apartment before marrying them.