The story takes place in Edinburgh, a big Scottish city. The police station is on the London Road next to the Castle and Princes Street Gardens. Kerr’s house is in Royal Terrace.
The story tells us of an inquiry by an Inspector (Jenny Logan) who is looking for a woman called Margaret Kerr, who has disappeared. To help her she asks Sergeant Grant to take charge of the affair with her. The inquiry starts with the testimony of the husband, Robert Kerr. Something happens…