After reporter Pat Allen is killed at the Daily Sentinel by a leopard, Britt Reid finds a transmitter in a cigarette box. Later, D.A. Scanlon informs Britt of the discovery of a perfect diamond on Allen's desk. Digging around, Reid discovers that the gemologist had been working on producing synthetic diamonds.
Quest roles:
Gary Owens, Signe Hasso, Sheila Leighton(Secretary), Richard H. Cutting(Professor Miller), Don Eitner(Pat Allen), Norman Leavitt(Walter Melvin), John Alvar(Mark)