It's DC Fiona Griffiths' first murder case - and she's in at the deep end. A woman and her six-year-old daughter killed with chilling brutality in a dingy flat. The only clue: the platinum bank card of a long-dead tycoon, found amidst the squalor.

DC Griffiths has already proved herself dedicated to the job, but there's another side to her she is less keen to reveal. Something to do with a mysterious two-year gap in her CV, her strange inability to cry - and a disconcerting familiarity with corpses.

Fiona is desperate to put the past behind her but as more gruesome killings follow, the case leads her inexorably back into those dark places in her own mind where another dead girl is waiting to be found. . .