The pleadings of Mrs. Lane for pure air for her baby boy cause Mr. Lane to move into a suburban home and become a commuter. All goes well until one evening when important business detains Mr. Lane in the city long after hours. He apprises his wife (a timid woman) by ‘phone of his detention. Mrs. Lane locks all the doors, puts her five-year-old boy to bed and retires to her room to await her husband. The little boy, after a short doze, awakes and recalls having left some toys in the garden. He gets up quietly, unbolts the door and goes out to recover his toys, slamming the door after him, thus causing several pans to fall with a crash. The noise so terrifies Mrs. Lane that she summons the maid and after discussing the situation she timidly resolves to investigate, taking with her her husband’s revolver. Finding the door unbolted, she secures it just as the little boy returns with his toys and vainly rattles the door knob for admittance. Frightened nearly out of her wits, she retreats with all haste to her bedroom and locks the door. Shortly after her husband enters the front door; in the hallway he stumbles and upsets the little table lamp, the noise of which adds more terror to the frightened Mrs. Lane and her maid. Groping his way up stairs he tries the doorknob of their bedroom. This is the last straw and the poor women are on the verge of collapse, but upon hearing the voice of Mr. Lane they are greatly relieved and welcome him with open arms. They relate the terrible incident to him and all start out on a tour of investigation, only to find their little son on the stoop fast asleep, nestled beside his companion, the family dog.