An introduction: Information on the stories below, and what inspired them.

House of pain and pleasure: A three month long look at a group of women who work at one of the East Bay's few houses of bondage, where men pay money for discreet BDSM services.

Profile of a pro-dom: "Lenore Bates," a 30-year-old dominatrix living in Oakland, has worked at the house for three years, where she's learned many of the intricate ropes of BDSM.

Tour the house: Take a look inside the house's five themed rooms, which are furnished with everything from elaborate metal bondage beds to shiny leather sex swings.

Glossary: A rudimentary guide to some commonly used terms related to BDSM.