Quirky chemist Eben Lamont has discovered a powerful new explosive and plans to turn it over to the government. Richard Leslie, the head of an explosives manufacturing company, offers to buy his new discovery, but Lamont turns him down. Afraid that his formula will be stolen by Leslie, Lamont uses invisible ink to tattoo part of the formula on his daughter Grace's shoulder. A spy for a foreign gov...

Hell Hath No Fury is a silent drama.

Shortly after Dr. Allen Forrest, who is involved with aircraft production for the United States government, invites his young nephew and business partner, Leonard White, to live in his home, idle gossips begin to spread rumors about Leonard and the doctor's pretty wife Madelyn. At first, Allen refuses to believe the stories, but gradually he becomes suspicious. One night, the doctor hears a noise ...