J.T. Petty, director of the acclaimed indie horror film Soft For Digging, shovels deep into the world of underground horror films for a documentary that will surely prove to be one of the most controversial screened this year.

While most genre fans' perception of the cutting edge of "underground" horror begins and ends with the likes of The Texas Chain Saw Massacre and Henry: Portrait of a Serial Killer, Petty's film takes the viewer far below the surface, into a hell of torture and fetish films that seem to cater to sociopaths and fuel their potentially dangerous desires. Or do they? That's the question the movie poses as Petty talks to subjects that range from articulate academics (Carol Clover, author of "Men, Women, and Chainsaws") to simple and delusional actresses ("scream queen" Debbie D.) to the seemingly demented outsiders who create the gruesome films that depict the rape, torture and humiliation of (almost exclusively) female victims. There are no easy answers when filmmakers Bill Zebub, Fred Vogel and the creator of S&Man himself, Eric Rost, discuss their work (along with extremely graphic clips) and explain what motivates them to put their fans' -- and, indeed, their own -- most revolting fantasies onto film. But beware: just as you're getting your head around what these men are saying, Petty's got a stunning surprise in store...