Sam Bisbee is a small-town glazier who's always trying to get rich quick, and his schemes are driving his wife crazy. When he invents an unbreakable glass windshield, his attempt to demonstrate it at a convention of automobile manufacturers is ruined when his car gets switched with another, and instead of bouncing off, the brick he throws at it smashes the windshield to pieces. On the train ride home, Bisbee considers suicide, but instead rescues a young woman who he believes is trying to kill herself. It turns out the woman is really Princess Lescaboura, and their friendship brings social success to the Bisbees.[4][5][6]
So's Your Old Man essay in America's Film Legacy: The Authoritative Guide to the Landmark Movies in the National Film Registry, A&C Black, 2010 ISBN0826429777, pages 121–122.