Mr. Boyd, a very jealous husband, through a combination of circumstances, finds his wife talking to a good looking bachelor named Perry. He forbids his wife to talk to the man again, but later when she meets with an accident, Mr. Perry goes to her assistance and they are both discovered in each other’s company by the irate husband. He will listen to no explanation and orders his wife home. Later, their child, a boy of four years, is taken suddenly ill during the evening while the maid is out. The mother starts to go for remedies and on her way to the drug store, meets Perry, and in her anxiety for her sick boy, asks Perry to go to the drug store for her. He does so and returns with the prescription and helps the wife in her care for the child. Mr. Boyd, who has been working in his office late, returns. Their boy has just gone to sleep and Perry is about to leave the house when they hear Mr. Boyd returning. Perry and wife remember Boyd’s insane jealousy. The wife tells Perry to hide behind the curtain or he will kill him before she has a chance to explain. Perry does so. Boyd enters the room, notices Perry’s stick which he forgot to take with him. The maid who has been spending the evening out with the policeman on the beat, who is escorting her home, arrives in time to see Perry jump out of the window. He grabs Perry and holds him. Meantime, the husband, who has looked about the room for some explanation of his wife’s guilty looks, hears a commotion outside. He takes his gun from the drawer and exits. The policeman tells Mr. Boyd that he caught Perry jumping out of the window. Boyd is sure now that his wife Is untrue to him. He tells the policeman that he will deal with Perry and under cover of gun forces Perry back into the house to confront the guilty wife. When the wife pleads for Perry and tries to explain he threatens to shoot them both. Meantime, the druggist discovers that he has given laudanum in place of some other ingredients while mixing the medicine for the sick child. He starts on a run for the house and arrives there just in time to prevent Boyd killing his wife and Perry and they all turn to revive the child. The husband now willing to listen to explanations, begs Perry’s pardon and his wife’s forgiveness.