During a rainstorm at a remote manor house, Richard Crayell plays host to several guests. At nine o'clock sharp, he excuses himself from the card table to take his medicine, promising to return soon.
Bart Morgan controls the town of Cactus City and is keeping all men away from Jane Rankin. When Johnny Day arrives and takes an interest in Jane, Morgan tries to kick him out.
When a criminal named King Fu who has terrorized a city substitutes himself for a stage actor who resembles him, the staff and spectators at that night's show think the actor is giving an unusually good performance.
First of several filmed versions of a popular period operetta, in which an early 18th century noblewoman in Poland falls in love with a revolutionary student activist.