Helen Mirren stars as D.C.I. Jane Tennison, a skilled, top-class detective, battling to prove herself in a male dominated environment.Investigating a brutal murder, her strength of character and skills as a detective are put to the test as she attempts to enforce her authority. When a second murder victim is discovered, the inquiry turns into a grisly investigation stretching back over 10 years.But is her prime suspect a vicious murderer or an innocent man, hounded by Tennison's determination to show she can perform as well as any man?