When WPC Jane Tennison is promoted to the role of Detective Constable in London's Bow Street CID, she is immediately conflicted. While her far more experience colleagues move on swiftly from one criminal case to another, Jane is often left with doubts about their findings. Becoming inextricably embroiled in a multiple-rape case, Jane must put her life at risk in the search for answers. Will she toe the CID line, or endanger her position by seeking the truth . . ?