A murder at a country house centres around the whereabouts of a horde of stolen diamonds and the unmasking of people who are not as they at first seem.

The tenants of an old London boarding house spend their time in petty bickering and sniping until a mysterious stranger arrives at their door.

Sherlock Holmes takes a vacation and visits his old friend Sir Henry Baskerville. His vacation ends when he suddenly finds himself in the middle of a double-murder mystery. Now he’s…

Nutbourne College, an old established, all-boys, boarding school is told that another school is to be billeted with due to wartime restrictions. The shock is that it’s an all-girls school…

Unsuccessful writer Aylmer Franklyn takes the chance to change identities after he discovers a corpse. However, he soon finds himself accused of the murder of a maid at a near-by…