SOKO Donau is an Austrian television series.

A musical show combining pop, theater, and circus inspired by Johann Strauss's operetta “Cagliostro in Vienna,” written by Thomas Brezina and presented by the Roncalli circus company.

Bernadette considers monogamy an outdated lifestyle. Therefore, she maintains simultaneous relationships with three pilots: Pierre, William, and Alexei, who, however, know nothing about each other. Since Bernadette chose them partly because of their different flight schedules, two of them are always in the air.