Late 1960s British B-movie sci-fi horror, starring Robert Hutton. When a mysterious meteor shower occurs above farmland in rural Cornwall, a team of scientists led by Dr. Curtis Temple is sent in to investigate. The scientists soon find themselves possessed by an alien force which wants to use them as slaves - apart from the indomitable Dr Temple, who appears to be protected from the deadly alien force by a metal plate fitted to his head after being injured in a car crash.