"After now having seen both movies, it’s clear where the films are connected. Certain scenes are so blatantly obvious, a blind man see it! It would be one thing for me to rattle off some facts but I had to inquire from Greg, in his own words, what are the major similarities between his film and SAW. Not only did he have an answer for that, but he made points that I completely missed."
http://www.unseenfilms.net/2014/01/den-2001_13.html