How do you get to the truth when everyone is lying? After the murder of Detective Inspector (DI) Brown, the Metropolitan Police puts the tough-minded Detective Chief Inspector (DCI) Bell on the investigation. He knows Della is withholding information and is determined to find out what she and Cal know. Meanwhile, Stephen Collins‘ story becomes more complicated when an anonymous fax reveals that his affair with Sonia was far from being superficial; Stephen was going to leave his wife Anne for her.

The revelation is another headache for the party’s spin-doctor, Andrew Wilson, who is trying to keep Stephen’s reputation intact. It also gives Cal pause for thought-why did Stephen lie to him? When Anne leans on him for support and information, Cal finds it increasingly hard to steer a professional line. Worst still, the trust between him and Della disintegrates when she realizes her life is in danger.