With help from Roger Coleman, an advertising executive, newspaper photographer Jim Tyler crashes the wedding of socialite Helen Hunter, whose wealthy father is notoriously camera-shy, and snaps candid shots of the Hunter family. Before he is able to send Emily, his carrier pigeon, to the newspaper with his exposed film, however, Jim is found out by Stiles, the Hunter butler, and a detective. Chased around the house, Jim hides in the bedroom of Helen's impetuous sister Sheila, who is amused by his predicament and escapes with him through her window. She then joins him for dinner at Roger's lavish New York apartment. There, Jim and Sheila are confronted by the apartment manager, who demands that they pay for the champagne and caviar Sheila had ordered from room service. A fight ensues, and Jim and Sheila are put in jail. After Sheila promises her angry, disapproving father, whose wedding picture has appeared in Jim's newspaper, that she will not see Jim for six months, she dons dark sunglasses and becomes Jim's devoted assistant. When Jim accidentally takes a photograph of Hunter gambling in an illegal casino and lands himself and Sheila in jail again, he forces Hunter's hand. To assure their marriage, Sheila insists that Jim give up his photography and take a position at Roger's advertising firm. Jim complies but, on the day of his engagement party, Sheila and Hunter discover that Jim is taking photographs for an advertising campaign. Furious at Jim's apparent betrayal, Sheila breaks the engagement without allowing him to explain that he was forced by Roger to take the photographs in order to keep him from using snapshots of her in an advertisement. Confused and heartbroken, Jim tricks his former editor into re-hiring him and then sneaks into Sheila's bedroom to retrieve his camera. After explaining the situation, Jim is forgiven by Sheila, who also accepts Jim's determination to return to photography. Just before they are to be married, however, Hunter sees another embarrassing photograph of himself in Jim's column and storms the ceremony. Supported by his editor, Jim convinces Hunter that the photograph actually was taken by his young granddaughter Patsy. Blessed by her father, Sheila finally marries Jim.