"His Majesty's Rival" - A young man, Lars Hjelm, returns home after being in Italy on a scholarship from the Swedish king, Gustaf III. On his way home he meets with opera singer Antoinette and fall in love with her. His fiancee Eva expects him home any day.

Gurli Lemon-Bernhard
as Antoinette LaGrange

Gösta Kjellertz
as Lars Hjelm

Inga Brink
as Eva

Torsten Winge
as Gustaf III

Hilding Gavle
as Count Hedencrona

Åke Söderblom
as Erik Hedberg

Thor Modéen
as Johansson

Gösta Björling
as Piero

Anna-Lisa Baude
as Madame Hillgren

Weyler Hildebrand
as Johan Tobias Sergel