Diverting final big screen outing for Simon Templar, fittingly played by the actor who began the series, Louis Hayward. The only one of the series made in England, it is populated by sleazy characters like Sydney Tafler, Harold Lang and Sam Kydd, all involved in the seedy gambling underworld of London. Hayward is a smooth charmer, as adept with his fists as he is with witty asides, as he doggedly gets to the bottom of a girlfriend's death. Although Naomi Chance makes for a charmless leading lady, Diana Dors does offer a sizzling single scene cameo. It took another decade before Roger Moore would revive and exemplify the character in a long-running TV series.