Patsy Shaw upsets a stuffy party at the home of wealthy Henry Breene by stealing a necktie to win the scavenger hunt at Robert Benchley's party across the street. Charlie Breene, Henry's spoiled son, comes to retrieve his tie and becomes infatuated with Patsy. Three months later, Charlie gives Patsy a valuable diamond bracelet, which she reluctantly accepts. Back at her apartment, Lester Trout, a saxophone player, convinces Patsy that he is ill and has lost his job. Patsy gives Lester the bracelet as a loan, against the advice of her friends, who are suspicious of him. Charlie's mother, Maggie, fearful of her son's relationship with a plebian, arranges a party hoping Patsy's lack of social graces will ruin Charlie's affection for her. Finding the party boring, Patsy goes to the bar, where after a few drinks, she begins to entertain the guests who are slowly wandering in to escape the dull affair. Maggie, relying on the family patriarch, Uncle Jefferson Breene, to end the romance, announces his arrival, but she is aghast when Patsy fondly hugs the old man whom she knows as "Jonesie," the friend of one of her roommates. Maggie then asks family attorney Albert Wiggins to end the romance, no matter the cost. Wiggins pays Lester to tell Patsy that he is ill and in need of her help. Charlie is informed about what Patsy did with the bracelet and accuses her of being unfaithful. Lester convinces Patsy to marry him, but as soon as they wed, she finds Wiggins' check for $5000 and realizes the truth. Patsy tears the check up, just as Charlie arrives with Jonesie, who arranges their reconciliation. Having only been married to Lester for ten minutes, Charlie has Wiggins arrange Patsy's annulment.