Cuando los duendes cazan perdices: Eulogio Soto lives with his mother. To please her, he tries to locate her brother because she will have to undergo a delicate eye operation and he fears that he will never be able to see her face again. The youngest son, who does not know who his real family is, lives in a luxurious mansion. In the search for his lost brother, Eulogio will be "found" by a woman who, like a goblin, makes life impossible for him to help him by all means.