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.
Leyre lives a quiet and comfortable life which ends abruptly when an act of rage of her teenage son leads her to protect him by any means necessary.
A group of friends and family reunite at the fancy new holiday home of a woman who is about to turn 40.
