Aspiring singer Susanne takes over one night for her sick colleague, the slap-stick actor Viktor, at a small cabaret in Berlin where he works as a female impersonator. By chance, Susanne is then "discovered" by an agent, who thinks she's really a man. She becomes famous and goes on tour to London. But when the local womanizer Robert catches on to her game, Viktor then has to jump in for Susanne as "Viktoria".