Returning to London, Simon Templar, alias "the Saint," meets and hires a reformed ex-con named named Dugan while rendezvousing with Sir Richard Blake, a friend of his in British Intelligence, who recruits him to look into a(it would turn out) suspected spy named Bruno Lang. At a party that weekend, he tails Lang to his home after meeting a beautiful, adventurous young woman named Penny Parker, who follows him after realizing who he is having been fascinated by his exploits. She helps him escape after he steals evidence against Lang from his safe.