Randall and Hopkirk (Deceased) - 09 - The House on Haunted Hill

Jeff sends Marty to investigate a supposedly-haunted mansion, Merston Manor, for a Mr. Webster, while Jeff investigates a diamond theft from Mortland.
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Starring: Mike Pratt (Jeff Randall) and Kenneth Cope (Marty Hopkirk)

Guest-Starring: Judith Arthy (Jennifer), Jeremy Burnham (Walter Previss), Peter Jones (Frederick P. Waller), Dermot Kelly (Henry Mace Horsfall), Duncan Lamont (Langford), Keith Buckley (Lattimer), George A. Cooper (Webster), Garfield Morgan (Carlson), William Kendall (Colonel Jarrett), Carol Rachelle (Miss James), David Sinclair (Smith), John Kidd (Simpson) and Terry Duggan (Jackson).