Marge Clancy leaves her small town and boyfriend Joe behind to strike it big in Hollywood. The only work she can get is stunt doubling. Joe goes after her and causes many messes in the studio.
After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.
All 12 jury members who sent an innocent man to the gallows are gathered together for a demonstration of how convictions can be made on circumstantial evidence.
A lover selflessly steps aside to let her guy go so he can hook up with a rich dame. Sadly, the goodie good girl ends up marrying some scum bag gambler.