On the New England seacoast, not far from Boston, lies a staid, picturesque village called Sutherlandtown. In these tranquil surroundings, Agatha Webb and her servant are found murdered. The task of unraveling the mystery begins at once, and suspicion points to a number of persons. Agatha herself had a tragic and troubled past. She suffered the loss of six of her children who died in infancy; some of the people of the village suspected her of complicity in these deaths, while others looked upon her as a victim. Adding to the complexity of the situation, a wealthy local man is being blackmailed by someone who believes that he is guilty of Agatha's murder. The solution of the puzzle is uncovered in an intensely dramatic court scene.