The patrons and residents of the newly opened guesthouse Monkswell Manor find themselves trapped by a snowstorm and threatened by a psychotic killer. With a finite cast of characters in this "locked room" mystery, it is not long before suspicions are voiced, and, under growing pressure, even newlyweds Molly and Giles each start to suspect the other of being a killer.
Agatha Christie is the most widely published author of all time, outsold only by the Bible and Shakespeare. Her books have sold more than a billion copies in English and another billion in a hundred foreign languages. She died in 1976, after a prolific career spanning six decades.