Jimmy Kenton, a young wastrel with an addiction to jazz, falls in love with Marguerite Crandall when she sneers at his sporty antics at a health resort. He is then sent to jail following an altercation with her escort. Jimmy's father, Mark Kenton, pays his son's bail and sends him to San Francisco, CA, to close an important real estate deal with Marguerite's father, George. The determined young man vows not to sleep until he has completed the transaction, and Mark decides to make him regret such a rash promise. He arranges with the George to delay closing the deal for as long as possible and has Pat Casey accompany Jimmy to ensure that he stays awake. After Jimmy rescues Marguerite from a forest fire, George closes the deal and permits his daughter to marry Jimmy.

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