Suspenseful and chilling!  The scenes  especially the  ones where viewers can only see shadows and silhouettes of  a man leaves much to the imagination.  As one continues to view the film, one gets the notion that he is actually alone and  he was just going after/ killing  a man that is of the same likeness as himself.  The film can be really confusing  especially during that scene where one can see the man weeping.  Is it a sign of guilt? remorse? or self-loathing?  The visuals are impressive though and  the film scoring appropriate enough.