The Claydon Treasure Mystery

This Quota Quickie reminds me of the board game where players had to find out who killed Colonel Mustard in the library with a knife.John Stuart is a mystery writer who uses a female nom Dr plume for his book.He is invited down to a country manor to investigate a murder.The murderer is supposed to be looking for a treasure located somewhere at the house.There are more murders.One takes place when the victim is about to reveal the murderer.There are lots of familiar faces in the cast including Finlay Currie and a younger looking John Laurie with a moustache.The fact that the detective has to spend some minutes at the end of the film explaining the plot indicates how complex the plot has become.