Young Doris Kane suspects that her fiance, Paul Evans, doesn't love her anymore. She finds out that he is now infatuated with a "vamp", Jeanne DuPre. Paul's father is appalled at his son's behavior, and devises a plan to break up the romance between his son and the vamp by making her fall for him and exposing her perfidy to his son.

Lawyer George Howell leaves his bride Ottilie on their wedding day, having promised client Ned Pembroke that he would procure some old love letters from Vera Vernon, a chorus girl with whom Ned was formerly infatuated. George is detained for three days, and when he returns, Ottilie finds jewels and burglar's tools in her husband's suitcase which leads her to suspect that he is a thief.