A physicist finds himself drawn into an investigation to track down a spy at his research station.
Released: Dec 01, 1958
Runtime: 78 minutes
Stars: Marshall Thompson, John Loder, Henry Oscar, John Stuart, Anne Aubrey, Magda Miller
Crew: Richard Gordon (Executive Producer), Ronald Kinnoch (Director), Brian Clemens (Screenplay), Ronald Kinnoch (Producer), Albert Elms (Music), Peter Mayhew (Editor)