Welcome to the world of whips, handcuffs, nipple rings, bootlicking, spanking, and genital torture. This is sadomasochism gone mainstream. And the more popular it becomes, the further underground the hardcore S&M proponents have to go. Why do people pursue this ""hobby""? Who pays 200 dollars an hour to be strapped to a ""wheel of torture"" in the dungeon of a popular Madame? Despite all the sexual overtones, S&M participants are not seeking sex. What they seek is the high from pain and humiliation. Find out why on this episode of The Sex Files.