在璀璨灯光下，马戏团的梦想腾空而起，欢笑声不断。追爱家族

　　US - Vaudeville dancer Marion Dixon is with her German manager von Kneischitz on tour in Moscow. Her act includes a gun shooting her to the trapeze, the stage director there wants a copy of this act for the USSR. She falls in love with a Soviet enginer, but von Kneischitz blackmails her with her dark spot in her life, she has a colored baby, to leave Moscow.