The Inspector Lynley Mysteries

The Seed of Cunning (4x3)

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Lynley and Havers investigate the killing of a porter at the House of Lords. At first, it looks as if the murder may be connected to the dead man's gambling debts, but then a senior clerk is also murdered, with evidence of a conspiracy involving stolen test reports on a new missile system. Havers traces the missing documents, but she finds that she and Lynley are both being followed.