DCI Shefford dies suddenly whilst investigating a murder case. Jane Tennison is given the opportunity to take over the investigation which involves the brutal murder of a young girl. The girl's body has been badly mutilated and her hands have been tied behind her back. Jane suspects that it is the work of George Marlow. Jane also has to win the respect and approval of her male colleagues.

The investigation continues.

Transferred to a new station with the new job of 'cleaning up the streets' of Soho, DCI Jane Tennison and her new team become involved in the seedy underworld of vice involving rent boys and transvestites, pornography and sickening abuse.

A local photographer is questioned after being caught destroying evidence linking him with the victim, and further searches of his studio reveal some shocking video evidence.

Tony and Ruth Sturdy's 14 year old daughter Sallie is missing. Due to retire, this could be Tennison's last case: but she has more than this to contend with. Her father is seriously ill and she has turned to alcohol.

Curtis Flynn flees the scene of his brutal encounter with Tennison. As the end draws near the truth surrounding the death of Sallie finally emerges and the hunt for the killer ends in a shattering confrontation.