A young lady, soon to be married, is being blackmailed and pleads for Poriot´s help. The blackmailer threatens to send to her future husband an old love letter she wrote. Poirot is determined to find the letter, but will he have to turn to crime to do so?

Agatha Christie, was an english detective novelist and playwright. Her books have sold more than 100 million copies and have been translated into some 100 languages. Agatha Christies´ most famous novels include And Then There Were None; Murder on the Orient Express; The ABC Murders and many others. In addition to her celebrated Poirot and Miss Marple, Christie also created amateur detectives Thomas Beresford and his wife, Prudence.