Hohe Schule (released internationally as The Secret of Cavelli) is a highly successful Austrian-German romantic drama film directed by Erich Engel. Set against the backdrop of aristocratic Viennese society and traditional equestrianism, the movie is a classic example of the popular 1930s Wiener Film (Viennese film) genre, featuring elements of military honor, hidden identity, and romance.

The film follows an enigmatic, masked equestrian—a dismissed Austrian officer—and the high-society drama that ensues when a general’s daughter falls in love with him.