Fitz (Robbie Coltrane) is a brilliant Criminal Psychologist with a dark side - a side dependent on a cocktail of alcohol and gambling. He lectures at the local university and profiles suspects for the Manchester Police Force. The investigation into a serial rapist drags Fitz into the murky and emotional world inhabited by both the perpetrators and victims of rape. With the noose tightening in response to details revealed on Fitz's radio programme, Penhaligon is raped as she investigates the case. Unsurprisingly her relationship with Fitz undergoes major changes which are only made worse by the return of Fitz's wife Judith to the family home in unexpected circumstances. A knife-edge conclusion tests Fitz to the utmost as his world of domestic disorders is thrown into even deeper disarray.