Appalled at the carnage being wreaked on allied ships by Nazi war vessels, the movie actress Hedy Lamarr invents a device that will prevent German ships and U-boats from jamming the allied warships' radio-guided torpedoes.

Secret Nazi supporter, Errol Flynn, discovers the details about Hedy's invention and, with the help of Austrian doctor and Nazi spy, Hermann Erben, sabotages her efforts to have her apparatus adopted by the U.S. Navy.

Angered by the Australian actor's duplicity, Hedy devotes the next seventeen years of her life trying to expose Flynn's treacherous actions, and bring him to justice. She only ceases her crusade when Flynn dies in 1959.

Is Flynn's premature death at the age of fifty caused by his hedonistic lifestyle, however, or are other, more subtle influences at work in hastening his untimely demise?

Inspired by true events.