In 1939, William G. Sebold, a naturalized citizen of the United States, found himself entangled in the dark world of espionage during a visit to his native Germany. With threats to his family, the Nazis coerced him to betray the land he called home. But Sebold played dangerous double-game.

As a secret FBI ally, he set up shop in the neon-lit Times Square, where the city's underbelly came to whisper secrets. With each clandestine meeting, the net tightened around the notorious Duquesne Spy Ring.

Sebold’s collaboration was instrumental: under FBI's orchestration, he transmitted false information to the Nazis, rendering their efforts futile. Despite his contribution to the U.S. war effort, Sebold's life unraveled, and he died, a conflicted and haunted man, in a California psychiatric hospital in 1970.