"Dagger of the Mind" | |
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Star Trek: The Original Series episode | |
Episode no. | Season 1 Episode 9 |
Directed by | Vincent McEveety |
Written by | S. Bar-David |
Featured music | Alexander Courage |
Cinematography by | Jerry Finnerman |
Production code | 011 |
Original air date | November 3, 1966 |
Guest appearances | |
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"Dagger of the Mind" is the ninth episode of the first season of the American science fiction television series Star Trek. Written by Shimon Wincelberg (under the pen name "S. Bar-David") and directed by Vincent McEveety, it first aired on November 3, 1966.
In the episode, the Enterprise visits a rehabilitation facility for the criminally insane where the chief doctor has been using a device which destroys the human mind.
This episode introduces the Vulcan mind meld.
The title is taken from a soliloquy by the title character in William Shakespeare's play Macbeth.[1]