El grano de mostaza

　　Evelio Galindo is a normal man who has a porcelain shop, but one day, during a game of dominoes, he has a big argument with Horcajo, one of his playmates, that ends in tragedy, as he challenges his opponent to death. As the game progresses, Evelio will realize the mistake he has made, trying to sneak by all means with the help of his friend Mr Toledano, something that will not be so simple.