The Inspector Lynley Mysteries - Season 4 - Eps 3: The Seed of Cunning
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 then she finds she and Lynley are both being followed...
About The Inspector Lynley Mysteries

Title: The Inspector Lynley Mysteries
First Air Date: 2002-04-08
Last Air Date: 2007-08-16
Status: Ended
Rating: 7.107/10 (from 28 votes)
Language: EN
Seasons: 7
Total Episodes: 22
Network: BBC One
Genres: Crime, Drama
Production Companies: BBC
Synopsis
DS Barbara Havers is assigned to work with the upper-crust DI Thomas Lynley to solve murders.
Cast

Nathaniel Parker
Inspector Thomas Lynley

Sharon Small
Sergeant Barbara Havers

Paul Hickey
Lafferty