'Operation Spanner' was the codename of an investigation carried out by police in Manchester (UK) in 1987. The police had obtained a video which they believed depicted acts of sadistic torture. Convinced that the people in the video were being tortured and killed, a murder investigation was launched resulting in raids on a number of properties and culminating in a number of arrests. Now meet the delectable PC Koral Devine, dark, sultry and according to her superiors, a bit of a handful, she has been tipped by her Commanding Officer to win the prestigious award of undercover policewoman of the year. But first she has infiltrate and get the 'goods' on a ring of local luminaries lead by 'Uncle Albert' and resident Magistrate, Hilda Carstairs. Both operate a lucrative business catering for the slaves of 'leather and steel', while at the same time gratifying themselves and the global demand for the ultimate in sado masochism. This is a story of domination and humiliation, of whips, chains and bondage and drug induced hallucinations, leading to adventures in the Greek world of the gods of sexual pleasure and suffering of men who aren't what they seem.