Mrs. Morrison's diamond necklace, a birthday gift from her husband, is one of the beautiful things Florence Barlow cannot afford. She can afford an imitation, however, and she has one made, an exact copy of the necklace, which she borrowed to wear to a ball. By mistake she returns the imitation and Morrison locks it away in his safe. The butler steals it when the safe is accidentally left open for a few minutes. When the jewel is missed, Morrison recalls having seen Florence near the safe while it was open. At a supper in celebration of her engagement she is wearing the original necklace when detectives arrest her, and the jeweler identifies the genuine stones. On the day of her trial Mrs. Morrison accidentally discovers the stolen necklace where the butler had hidden it; the man observes her and cupidity makes him incautious. Morrison, returning, finds his wife struggling with the thief, and at the eleventh hour Florence is cleared of the charge, the butler being held for robbery.