The film is a strange, anti-hero transposition of a very popular animated manga cartoon in the 1980s called Steel Jeeg. Here, young outlaw Enzo is somehow affected by radioactive waste in the Tiber waters in Rome. He subsequently finds out he has gained super powers and interprets them as a reward for never having managed to enter the criminal world significantly. The inside joke reveals itself when Enzo meets Alessia, who believes the charming hero is the personification of the hero in the cartoon she used to watch.
At one point in the film, Enzo is asked if he was bitten by a bat in order to become a superhero. Claudio Santamaria (Enzo) previously served as the voice of Bruce Wayne/Batman for the Italian dubbing of Christopher Nolan’s Batman trilogy and also for The Lego Movie’s Batman. Also, the off-screen voice heard from a TV reporter in the closing sequence was provided by Adriano Giannini, who dubbed the Joker in the same series of movies.