Once upon a time there lived a scientist name Joseph, his full name was Joseph Campbell, he was very kind, gentle heart. One day Joseph was testing some chemicals and one of the chemical slip from his hand fall on the floor, some blast occurs then after two zombies were seen on the other end of the door, the two zombies that were seen the one was Joseph and the other was his shadow.
I think you all were little confused and think how Joseph shadow becomes zombie.... These questions were to be answered in PART 2.