The Monster of Florence 2025 Genres: Drama, Crime, Biography Country: United States, Italy Director: Stefano Sollima Duration: Episodes Vary 60 Min Year: 2025 Actors: Niccolo Cancellieri Storyline: Follows The Case Of `Il Mostro Di Firenze,` Italy`s First Serial Killer, Who Eluded Justice While Terrorizing The Nation For Decades.