He decides to take everything in the world down before going to Vatican City to kill Jesus Christ before he is born (being at 2013 and 0 B.C at the same moment) and killing him to complete his mission. The story takes place in Italy (in the first levels) and has as its protagonist the creator of the game (Nicola Piro) who apparently hates everyone and everything, especially religion and one day he is bored, so he decides to kill everyone including famous Italian celebrities like Mike Buongiorno, Moira Orfei, Emilio Fede, and others. Not many people know about the story of Grezzo since it was never told, and it's hard to find it.