a dark and terrible secret lurks on the 13th floor of a plush city office block and where a supernatural curse have bring disaster to anyone who rent it . a mysterious presence have drive business to ruin and make office machinery break down and create a deadly lifeforce of it own in the electrical system . the tortured soul of an innocent boy who be cruelly murder many year before be lie in wait for the moment of revenge . the 13th floor be easily one of the bad horror film i have ever see . the film be extremely boring and there be no gore nor suspense . the special effect be incredibly cheesy and the acting be horrible . why such piece of crap be widely distribute and some italian horror movie be completely unavailable be beyond me . negative .