There is a common superstition that the picturesque old home of James Clinton, a millionaire, is haunted. One night as the nurse is telling the ghost story to Chilton’s little daughter, Adelaide, Spider Pete, a notorious thief, is about to enter the window. Spider overhears the weird tale and becomes so terrified that be abandons all professional thoughts in a spectacular flight. Chilton has married a second time. His bride, Isobel, devotes her life to society and has scant interest in her stepdaughter, making little Adelaide very unhappy by her fault-finding. Spider reads in a paper that Chilton has presented his wife with the famous Hepworth sapphires. “Ghost or no ghost, I’ll get them stones.” Exclaims the crook, and when the house is clothed in darkness, he enters the window. Isobel punishes Adelaide for some trifling disobedience by locking her in a dark room. When the wife retires to her boudoir she is horrified to see Spider’s reflection in the mirror. The crook is about to resort to violence to prevent Isobel from giving the alarm, when a series of strange sounds issue from the adjoining room. Adelaide, angered at the injustice of her punishment, is throwing things about. Superstitious Spider crouches in terror and Isobel, grasping his revolver, is master of the situation. Chilton returns from a late engagement and summons an officer, and Adelaide, who has unconsciously impersonated the celebrated Chilton Ghost, wins the love of Isobel.