Overview: An escaped mental patient holds Director Carlson hostage and demands that he be given the secret of Dan Westin's invisibility.
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First Air Date: May 06, 1975Last Air date: Jan 26, 1976Season: 1 SeasonEpisode: 13 EpisodeRuntime: 48 minutesQuality: HDIMDb: 6.00 / 10 by 20 usersPopularity: 9.107Language: English