In Madrid, Spain, a mysterious serial killer ruthlessly murders his victims by recreating the first appearance of several comic book superheroes. Cosme, a veteran police inspector who is about to retire, works on the case along with the tormented inspector David Valentín and his own son Jorge Elías, a nerdy young man who owns a comic book store.

After a couple finds a traumatized child of unknown origins, wife Paula must decipher the girl’s strange behaviors to unlock her identity and dark past.

A poor boy of unknown origins is rescued from poverty and taken in by the Earnshaw family where he develops an intense relationship with his young foster sister, Cathy. Based on the classic novel by Emily Bronte.