When Mabel Robinson's costume party is broken up by the police, Jack Hackett's father insists that he end his engagement to her and leave town in the company of his cousin, Ossie Simpson. Mr. Hackett hopes Ossie's presence will be a steadying influence on Jack and orders Ossie to avoid women. Ignoring this edict, Ossie and Jack flirt with every woman they see on their way to California. In the Cactus Cafe, somewhere in the desert, Ossie manages to insult Pancho, a South American customer, who leaves the cafe in a huff. Later, they run into the back of Pancho's car, and when they get out of the car to assess the damage, Pancho drives away with their car hooked to the back of his. Walking along the road, Jack and Ossie stop to help Constance Palmer, whose car has broken down. She and her friend, Penelope Packer, offer the men a lift to the Huntington Hotel in Pasadena where everyone is staying. Ossie and Penny and Jack and Connie spend several delightful days together, despite the disapproval of Connie's aunt Polly. Jack asks Connie to marry him and she agrees, provided he will swear that the stories of his flirtations aren't true. Unfortunately for Jack, Mabel has followed him to California and threatens to show Connie his love letters. Ossie suggests that his actress friend, Gertie Gardner, pretend to be Connie and get Jack's letters from Mabel which they will then burn. The plan seems to work perfectly, but Connie and Penny return to the hotel earlier than they had planned and misunderstand what they overhear. Things grow even more complicated when Gertie's boyfriend Pancho arrives. Finally everything is straightened out and Jack will marry Connie as planned.
