An expedition to climb a Himalayan peak is sponsored by an American film company. The leader, Malnik, is a Czech mountaineer and the team includes his beautiful Italian wife and that irrepressible actor-manager and amateur sleuth, Sir Abercrombie Lewker. Trouble brews fairly soon after the expedition sets sail from England, but it is not for some time that a corpse is delivered and the reader is kept guessing until then as to who is to die....