Indigo, a girl with a rather unusual route, mentally recalls her life from her birth till the event which led her to emancipate. She grew up in a family with two heterosexual fathers, Rubén, the Spaniard, and Tony, the American, united in the bonds of a non-carnal marriage, who had decided to raise their daughter together, born to a surrogate mother. But when she decides to get back Indigo, things get more complicated...