Cain is fat, shy and invisible to women. He works as a butcher in the Madrid district of Lavapiés surrounded by immigrants from Morocco, Bangladesh, China, Senegal, Bulgaria, Perú… But Cain feels lonely.
His family is limited to his brother Abel, who is everything Cain would like to be; good-looking, seductive, married to a striking woman and the father of two lovely twin girls.
Our story begins when Cain finds out that his brother Abel has got Aisha, the attractive neighbour and daughter of Muslim immigrants from Bangladesh, pregnant. Cain surprises everyone when he decides to pretend to be the father and take on the maintenance and education of the child.
Caín (gordo y tímido) descubre que su hermano Abel (seductor, casado y con dos niñas) ha dejado embarazada a Aisha una atractiva vecina hija de inmigrantes de Bangladesh, de religión musulmana.