Charley is afraid of dogs, and one chases him into a phone box, which a stuffy aristocrat has just left to get more change, to continue the phone call with his fiancée, who is being forced by her parents to marry him. Charley agrees to help the girl, and is mistakenly hired as a butler at the same house. That evening, there's a big party at the house, and he has to find out which of the 20 girls there is the right one. The moment, he finds her, he gets the order to bathe the Duke, her dog, but he thinks she's talking about the future son-in-law... Meanwhile, the father, fed up with the aggressive dog, gives another domestic the order to get rid of the dog at midnight, when he hears him howling like a dog, the dog will be thrown by him out of the window. The aristocratic fiancée is in reality a crook, and is going to throw the safe out of the window, his partner in crime shall be prepared, when he hears him howling like a dog at midnight. Charley tells the girl that he will be ready for her eloping at midnight and the signal is him howling like a dog...