George Walters is a youth who is dominated by Bleary, a heartless bully, who forces him to pose as the son of millionaire George Warring, kidnapped as a baby. The missing son had a twin brother who had recently died, but a painting of the shadow of the late son is on one wall. Walters' shadow matches this painting perfectly, establishing him as the missing son to the Warring family. Walters falls in love with Warring's daughter Lucia and finds that the family attorney Glaxton is slowly poisoning the old man.

Lin McAdam rides into town on the trail of Dutch Henry Brown, only to find himself in a shooting competition against him. McAdam wins the prize, a one-in-a-thousand Winchester rifle, but Dutch steals it and leaves town. McAdam follows, intent on settling his old quarrel, while the rifle keeps changing hands and touching a number of lives.

Davey Gordon, a New York City boxer at the end of his career, falls for dancer Gloria Price. However, their budding relationship is interrupted by Gloria's violent boss, Vincent Rapallo, who has eyes for Gloria. The two decide to skip town, but before they can, Vincent and his thugs abduct Gloria, and Davey is forced to search for her among the most squalid corners of the city, with his enemy hiding in the shadows.