The superlatively analytical Inspector Hemingway is confronted by a murder that seems impossible? No one was near the murder weapon at the time the shot was fired. Everyone on the scene seems to have a motive, not to mention the wherewithal to commit murder, and alibis that simply don't hold up. The inspector is sorely tried by a wide variety of suspects, including the neglected widow, the neighbor who's in love with her, her resentful daughter, and...