Chief Inspector Brett Nightingale and Sergeant Beddoes find the body of Princess Olga Karukhin, who fled from Russia at the time of the Revolution. Taking place in the three days leading up to Christmas, Nightingale's enquiry takes him to a gramophone shop and a jewellers, culminating in the wrapping of the mystery on Christmas Eve.
Taking place in the three days leading up to Christmas, Chief Inspector Brett Nightingale and Sergeant Beddoes conduct an investigation into the discovery of the body of a Russian princess who fled Russia at the time of the Revolution.