A series of unsolved murders, a mysterious assassin, two men seeking the truth. A dark shadow wandering in the city reaping victims downtown. He’s a nameless killer who acts following a precise scheme. Thanks to the strong curiosity of an archaeology student and the careful investigation of a police inspector they will unfold the mystery behind the killer mask. Nothing is what it seem and the root of evil are hidden deep in the past. Inspector Domizzi and Andrea Bruni must dig deep to take back to light the truth and stop the series of murders, and their investigation will cross the path with the famous archaeologist Elga Snaider.