en Cuevana 3. Vienna around 1900. Karl Hofeneder, owner of a dance school, puts great importance on teaching his students not only the right steps but also good behavior. Twenty years ago, the bachelor lost the love of his life to his friend and competitor Georges Roublée. The two have been enemies ever since. Hofeneder is annoyed when he finds out that Roublée wants to open a second dance school locally.