Vincent Pollack is a serial killer, whose evil roots were planted during a traumatic childhood, with an agenda to rob and kill women for financial gain. It is down to Mavis Bone, a forty-year-old Australian, lesbian Private investigator, and her German lesbian secretary, Gertrude Stick, to try and foil his murderous plans. Together they make up the Mavis Bone Detective Agency based in Wimbledon Broadway, London SW19.

It is a hands-on job to chase down this ingenious killer, and Mavis is not afraid to get them dirty. Dirty with the blood of her prostitute philandering husband, and the blood of a problem client that could send her secretary to prison for a war crime. Both detective's and killer's paths, have already crossed during their troubled youths, but as the murders pile up, they move towards a final conflict.

Mavis's hard Australian outback childhood, led to her sexual and gender choices, as well as some questionable racist opinions. Not to mention the drug habit she picked up as a student, while backpacking in South America. This, making her, not your average South London Private Eye.