David Calder

The anti-terrorist squad has Boyd's HQ under lock-down, and the team is quarantined until the substance that affected Felix can be identified.

The team discover that the motive for the murders was to prevent the truth of the killer's secret life from reaching his wife.

Grace is called to give evidence at the appeal of Tony Green, whose arrest and conviction thirty years earlier was her first case.

New DNA results reveal that the man who was convicted of murdering two anti-nuclear campaigners in the 1980s wasn't the real killer.

The team are convinced that a man about to be released from prison is actually a killer, but they need the evidence to prove it.

A millionaire businessman is found dead one year after being imprisoned in an underground cellar, but the kidnapper made no ransom demands.

Following the shock of the Moonstone's disappearance, the celebrated detective Sergeant Cuff is called to Yorkshire by Franklin. Rachel is devastated by the loss of the diamond and leaves for London, casting suspicion on herself. Cuff focuses on the odd behavior of Rosanna, a reformed thief who now works as a servant in the Verinder house. Before he has chance to talk to her, she disappears.

The Verinder's solicitor Mr. Bruff discovers that Godfrey has proposed to Rachel and that the invitation has been accepted. While Bruff heads off to try to stop the wedding, Sergeant Cuff arrives at Franklin's lodgings with a letter from Rosanna.

It is 1849, and Franklin Blake comes back to England after his father's death, forced to face the ghosts of the year before. The famous Indian Moonstone was stolen on the night of Rachel Verinder's 18th birthday and Franklin seeks out the Verinder family butler, for his help in finding the jewel. If he doesn't find it, then Rachel, the love of his life, will be lost to him forever.