A snowstorm traps a group of strangers at Monkswell Manor. One of them is a murderer. Suddenly, into their midst comes a policeman, traveling on skis. He no sooner arrives, when another guest is killed. Superb intrigue, intricate plot twists and shuddering suspense are all woven into a clever mystery. And just when you think you’ve got it figured out, Ms. Christie pulls a classic twist. A whodunit by the foremost mystery writer of her time.