A British military paratrooper disappears in mid-air during a jump from an army plane. Two investigators, Patrick Allen and Neil Connery, try to unravel how this happened. What they uncover is an alien plot to steal the bodies of earthlings by snatching them out of the air.
George Sanders
as Gen. Armstrong
Maurice Evans
as Dr. Matthews / Alien
Patrick Allen
as Bob Megan
Neil Connery
as Jim Radford
Robert Flemyng
as W.C. Baldwin
Pamela Conway
as Lorna
Allan Cuthbertson
as Hindsmith
Michael Culver
as Lt. Bailes
Sally Faulkner
as Joanna
Shelagh Fraser
as Mrs. Thatcher
Hilary Dwyer
as Julie Slade
Dennis Chinnery
as Control Officer
