 As he slowly makes his way to a particular mannequin, we hear the voiceover again telling us that the insanity is hereditary as he repeatedly stabs the mannequin, releasing his pent up rage and craziness.In the original cut, Lenzi opted to not show the murders as to add suspense and mystery about the motives and the identity of the assassin.The American producers felt the audience could be confused, so they added about ten minutes of footage displaying the murders and clarifying some parts of the plot.