Get ready for a second caseload of complex crimes and quirky criminals deftly handled by Chief Inspector Roderick Alleyn (Patrick Malahide, The Singing Detective). A hard-working Scotland Yard detective, Alleyn's aristocratic breeding allows him to blend into the high-society realm in which these crimes occur. In stories based on the classic mystery novels by Ngaio Marsh, Alleyn traps a murderous blackmailer stalking London's debutante set, attends a lethal luncheon at the home of a gracious host, uncovers the killer of a World War I veteran's entrusted confidant, and witnesses heinous exploits on a picturesque Scottish island. The chief inspector gets expert assistance from his partner, Detective Inspector Fox (William Simons, Sergeant Cribb), and his insightful lady friend, artist Agatha Troy (Belinda Lang, To Serve Them All My Days). Guest stars include Diana Quick, John Gielgud, Geoffrey Palmer, Derek Benfield, Margaret Tyzack, and Tom Wilkinson.