It is April 5, 1864, when the Count of Samerand busy in his experiments is commissioned by his good friend inspector James Wright in the murder of Robert Melbourne, a wealthy landowner from the states who has been found murdered by the house staff. The case should be a simple one for one so versed in crime, but circumstances are not what they seem to be, and the murderer has disappeared from a room that is barred from all sides. Will the count with all his worldly knowledge find the killer or has he met his match?