Dashing Frank Chandler's (Edmund Lowe) alter ego, Chandu the Magician, strikes fear into the underworld. When the evil Roxor (Bela Lugosi) kidnaps his brother-in-law, Chandu employs all his powers to get him back. Roxor's diabolical challenges are no match for the illusionist, until the archfoe raises the stakes by abducting Chandu's beloved Princess Nadji (Irene Ware). William Cameron Menzies directs this adaptation of the popular radio serial.