A gang of thieves in Istanbul, led by a mastermind criminal known as "The Voice", are planning to steal defense plans important to the protection of the Suez Canal during a peace conference to be held there. Larry Wilson, an American intelligence agent, is sent to the scene of the plot. The plans have been hidden in the jewel box belonging to a wealthy Egyptian attending the conference. As part of the plan, the gang hires Lynette Garay to assume the identity of a dancer known as the "Flame of Stamboul" and get friendly with the son of the Egyptian.