Overview: A recording device made by Alexander Graham Bell assists in the investigation of a murder at a dinner honoring Helen Keller.
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First Air Date: Jan 24, 2008Last Air date: Apr 08, 2024Season: 18 SeasonEpisode: 288 EpisodeRuntime: 60 minutesQuality: HDIMDb: 7.70 / 10 by 248 usersPopularity: 206.833Language: English