In January 1919 tank bursts in Boston's North End, flooding the neighborhood with molasses. When a woman is found murdered in the wreckage, Frances Glessner Lee asks her old friend, medical examiner Dr. George Magrath to help exonerate a young serviceman. He's a resident at the home for returning soldiers on Beacon Hill that Fanny has come from Chicago to manage. Frustrated by her lack of education and skills, she wants to clear the young man's...