There's a plot to kidnap Shirley Grey so she won't inherit an estate and mad scientist/cocaine fiend/European Doctor Fred Malatesta will. Fortunately, Richard Talmadge is on hand to rescue her from Malatesta's secret-passage-and-men-standing-around-in-suits-of-armor-infested private sanatorium, despite the attempts of the police to arrest him.
Talmadge had started as a circus acrobat and broken into the movies as Douglas Fairbanks' stunt double. By the middle of the 1920s, he was starring in light-hearted adventure romps that featured his acrobatic hijinks. He continued starring throughout the early 1930s in state-right distribution vehicles (this one had 26 distributors according to the IMDb), but the production values were quite obviously cheap and the details often ludicrous, as here; only Talmadge's stonework, shot wild, remained top-notch.
Talmadge retreated to supporting work, stunt work, and stunt direction and prospered in the last field; his last credit was supervising stunts for HOW THE WEST WAS WON -- a fine career.