On the verge of being expelled from his home for not paying his debts, a government employee is mistaken for an inspector and decides to use that as an advantage.

The Fidalgos da Casa Mourisca are ruined. Poor management and the pride of D. Luís have led the estate to this situation. However, Jorge, the eldest son, is not happy with this and decides to ask for help from a farmer who has prospered: Tomé da Póvoa. Tomé da Póvoa has a daughter who was educated outside the village and is now returning home. Jorge falls in love with her. But the proud and inflexible D. Luís, Jorge's father, does not agree with either Jorge's proposed economic recovery plan or his passion for a commoner.

A fussy insurance inspector (Varela Silva) has the mission to investigate why, in three years, 325 employees have passed through a farm shop. In his police demand, he speaks with the maid, the girl Elvira (Fernanda Borsatti) and with the store's boss, Mr. Silva (Henrique Santos). His curiosity will only be satisfied with the arrival of Dona Berta (Elvira Velez), with her "nausea" daughter (Isabel de Castro) and her "unbearable" granddaughter (Guida Maria)