As children, Fritz and Adolphe are sold to a traveling showman, who trains them to become circus artists. Together with the two girls Louise and Aimée, they perform to audiences night after night while being subjected to a harsh training regimen and daily beatings. As the four friends grow up to become young adults, their master dies, and they begin to perform to an enthusiastic audience as The Four Devils. Countess Taube, who regularly watches their performances, falls in love with Fritz. Despite the budding love between him and Aimée, Fritz embarks on a relationship with the Countess, causing Aimée to devise a fatal revenge plan.