IF YOU WATCH SAW 2 BACKWARDS; IT'S ABOUT A MAN WHO FINDS HIMSELF TRAPPED IN A ROOM, WHEN A PSYCHOPATH WOMEN MONOLOGUES TO HIM AND LETS HIM LEAVE. MEANWHILE, HIS SON IS ABOUT TO GET BRUTALLY MURDERED WHEN HE SOMEHOW STARTS TO BEFRIEND THE MURDERER, WHILE A FURNACE REVIVES A MAN, AND A LIFE MACHINE WITH SPIKES REVIVES AN IMPALED MAN