An international spy ring, headed by Haghi (Rudolf Klein-Rogge), uses technology, threats and murder to obtain government secrets. As master spy, president of a bank, and music hall clown, Haghi leads several lives using instruments of modern technology to spearhead a mad rush for secrets; secrets that assert his power over others. Agent No 326 (Fritsch) is ordered to stop the spy ring but instead falls in love with one of the spies...

Fritz Lang's espionage epic, his penultimate silent film newly restored to its original length! A flawlessly constructed labyrinthine spy thriller and hugely influential, Lang's famous passion for meticulous detail combines with masterful storytelling and editing skills to form a relentless story of intrigue, espionage, and blackmail.