Detective Inspector Geraldine Steel relocates to London to take on another harrowing murder investigation. The bodies of two black girls are discovered in quick succession in North London; two teeth from each victim extracted after death. One of the girls worked in a massage parlour and suspicion falls on a client of hers, a known racist, but while the police flounder, the killer takes another girl home to his attic, where he keeps his victims chained up while he shows them his 'collection'.
With the death toll mounting, DI Geraldine Steel is running out of time as she hunts for the elusive killer the papers are calling 'The Dentist'.