Betty is startled awake in her bed on a stormy night. She searches for the cause of the shock while she sings the song. Then, unexplainable phenomena start happening in the house. Mysterious Mose (Bimbo) appears, and sings part of the song. Bizarre cartoon creatures appear and, at first, sing and enhance Mose's "mysterious" image. Quickly, however, the antics become frightful even to Mose. The film escalates into chaos, which ends when Mose bursts, revealing him having been an automaton (full of cogs and springs) the whole time.
The film features some unforgettable characters (more precisely in Italian: macchiette) created by Ettore Petrolini: Gastone, Fortunello and Nero. Nero, who rides a bicycle, which burns Rome with a match, that calls the fire department by phone from the imperial palace. There is also Petrolini in his dressing room surrounded by admirers, including a young girl who returns to the theater the next day, between the two was born a flirt, but the actor will not leave the theater to go out with her.
Jim Smith (Lucien Littlefield), a millionaire due to his Bible publishing business, is married to the overly frugal Sue (Louise Fazenda). They desire to teach their ward Nanette (Bernice Claire), who has an untapped wild side, wants to have some fun in Atlantic City, and is being pursued by Tom Trainor (Alexander Gray), to be a respectable young lady.
Dulcy, la fiancée de Gordon, un jeune homme d'affaires, tente d'aider son futur mari à réussir dans les affaires. Mais si elle ne fait pas toujours ce qu'il faut au bon moment, elle n'est pas si bête.
Wheezer attempts to find his puppies after they run off and travel across the city. At the same time, the rest of the gang crash a high-society dog conformation show where Farina is working as a page. The kids bring all manner of wild animal pets (frogs, mice, ducks, and even a pig) into the show, and cause commotion and fear among the ritzy attendees. Because of the commotion the kids cause, Farina is fired.
Gentleman jewel thief Raffles (Ronald Colman) decides to give up his criminal ways as the notorious "Amateur Cracksman" after falling in love with Lady Gwen (Kay Francis). However, when his friend Bunny Manders (Bramwell Fletcher) tries to commit suicide because of a gambling debt he cannot repay, Raffles decides to take on one more job for Bunny's sake. He joins Bunny and Gwen as guests of Lord and Lady Melrose, with an eye toward acquiring the Melrose necklace, once the property of Empress Joséphine.
Wall Street wizard, Larry Day, new to the ways of love, is coached by his valet. He follows Vivian Benton on an ocean liner, where cocktails, laced with a "love potion", work their magic. He then loses his fortune in the market crash and feels he has also lost his girl.
In this drama, a 50-year-old married man (played by John Halliday) goes with his wife (Belle Bennett) and son (Junior Durkin) to a nightclub in a fancy hotel in Detroit. He meets a gold-digger (Dorothy Burgess) there, singing the theme song of the picture, and eventually ends up going out with her on a subsequent occasion and falls in love with her. His wife finally finds out and this leads to her leaving him and getting a divorce in Paris. He is married to the gold-digger but finds life with her and her "jazz friends" to be too much for him. He begins to long for his old wife when he finds her in a nightclub with another man (Richard Tucker, not the famous tenor) and becomes jealous.
Jackie is trying to circulate a petition among his classmates to keep school open during the summer, as he and the gang are afraid that they might lose Miss Crabtree during summer vacation. In addition, the kids fear that she might get married and therefore no longer be able to teach them.