Detective Constable Geena MacGuire is very keen to gain a promotion to Detective Sergeant, so when an interesting new case comes in as she is about to take some leave, she takes the file home with her and reads up on the so-called Secret Spanking Society. Determined to infiltrate the society and gain knowledge of their decadent activities, she undertakes her own investigation, starting with a visit to a fetish club. Dressing the part and posing as a woman called Miranda, Geena has to agree to being spanked so as not to blow her cover. She asks many questions during the course of the evening, and her euphoria changes to fear as she is blindfolded and bundled into the back of a car on her way to an unknown destination. She later experiences her own personal induction to the Secret Spanking Society and makes a surprising discovery.