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Josh Mallon, the scion of a straight-laced shipping magnate, and his free-spirited pal, Ace Lannigan, ridicule the institution of marriage.  Josh's wishes are overruled, however, when his father, disgusted with his son's irresponsible antics, commits Josh to an office job and a marriage to socialite Gloria Wycott.  The wedding is postponed, though when, on the eve of Josh and Gloria's engagement gala, Ace and Josh skip town after a brawl with Josh's future brother-in-law, Gordon.

Although bound for Singapore, the pair land in Kaigoon, poor yet happy, and resolve to remain bachelors forever.  Their resolution is short-lived when they meet Mima, a dancer in a local dive—a meeting which ends in a fight with Mima's jealous dancing partner, Caesar.  That night, Mima leaves Caeser to move in with Josh and Ace, and promptly begins to domesticate the boys, who both fall in love with her, although neither will admit it. 

Meanwhile, Timothy Willow, the Mallon representative in Kaigoon, wires Mr. Mallon that his missing son is in town, and while Mima falls in love with Josh, his father and fiancée fly down to Kaigoon to retrieve him.  Josh resists Gloria's pleas to return, until Mima, in an act of self sacrifice, sends him home by accepting Ace's marriage proposal.

After Josh departs, Ace and Mima are forced to flee the authorities, and Ace realizes that Mima loves Josh.  The lovers are reunited when Josh's ship docks on the way home and, recognizing from a distance one of Ace's get rich schemes, he knows that Mima must be there, too and rushes ashore to be with her.