López gets tired of his almost human life, of going out shopping, bathing with shampoo and watching TV. One day, he runs without stopping, in search of a dog's life, like Cartucho's.

But he discovers that he has no idea of ​​what an authentic dog life is like and, then, tired of being a "street dog", he decides to return to the Gil´s home. What will await Lopez on his return? In this book, López will learn that some decisions have no turning back, but also, that doors are always open to new worlds.

Silvina Rocha and Cucho Cuño, the authors, give life to López, a dog not so dog, which we love very much.