Review by magicshadows-90098

Kerrigan (John Stuart) is an engineer who dabbles in mystery writing. His attention is turned to Marsh Manor where resides the fabulously wealthy Claydon family. A librarian who works at the Manor is found murdered. Can the death have anything to do with the famous Claydon treasure? A treasure supposedly hidden on the estate a hundred years before but never found. Lady Caroline Marsh (Annie Esmond) invites Kerrigan to the estate to solve the mystery.

There, Kerrigan encounters a vast array of suspects, including Lord Claydon (Aubrey Mallalieu), the Lord's friend Sir George (Garry Marsh), and Sir George's lovely niece, Rosemary (Evelyn Ankers). A guest in the house, Rubin (Finlay Currie), is found murdered in the library. The police are on the lookout for a mystery man known by his alias, The Duke. While Kerrigan begins to suspect that rival gangs have infiltrated the house with everyone after the famous missing treasure.

It's all played out in a pleasing fashion in the tradition of old murder mysteries. My only complaint is the transfer I saw is from an old 16mm print and there is a noticeable hiss in the soundtrack. One has to pay close attention at all times to hear the dialogue and understand what is happening.