When Chief Inspector Pel receives a letter from an old friend, it becomes a sign of all hell breaking loose.Two murders are committed and a suspicious robbery takes place. What is the connection between the letter, the robbery and the murder?An international plot begins to unravel and Pel is called in to pick up the pieces. Moody, sharp-tongued and worrying constantly about his health, Inspector Pel ensures that no case goes unsolved, in these mordantly witty French mysteries.