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. Madrid, 2019. A serial killer is spreading chaos. Anonymous people with no apparent connection are being murdered while imitating the first appearances of the most famous superheroes. Cosme is the best detective on his station and he's about to retire against his will. David is his replacement, but he's young and impulsive. Both will be on a mission to put together the pieces of a game they're completely unfamiliar with. On this adventure they'll have the assistance of Jorge Elías, son of Cosme, lovable nerd and owner of a comic book store, and Norma, their chief and manga and cosplay lover. They say sometimes you have to put on your suit and come out to make this a better world. Maybe this is one of those times.