August Bolte, the richest man in a settlement in German East Africa in the period before World War I, is called "Mamba" by the locals, which is the name of a deadly snake. Despised by the locals and the European settlers alike for his greed and arrogance, Bolte forces the beautiful daughter of a destitute nobleman to marry him in exchange for saving her father from ruin. Upon her arrival in Africa, she falls in love with an officer in the local German garrison. When World War I breaks out, Bolte, unable to avoid being conscripted, foments a rebellion among the local natives.

Helen Lester is in love with a man she has known just 24 hours, a playboy who spent time in jail for passing bad checks. Though the man has promised to change, most of her strait-laced relatives are up in arms. But Clare Lester, Helen's grandmother, says the girl is free to join the man she loves. On one condition, that she listen to the story of a day in Clare's own life and of a man she tried to change.

Soapy Gibson (Edward Ellis) and his wife Annie (Marjorie Rambeau) run a lonely hearts club in a small town. Even during the Depression years these were often "clip joints" - places where people with money but no mate got taken by someone offering the promise of companionship. However, Soapy and Annie are strictly on the level - and they have more than one reason to want to stay on the level. You see Soapy escaped from the law years ago, had some plastic surgery and changed his name, and has been living on the lam with his wife ever since.