Colonel March of Scotland Yard: Season 1, Episode 6

The Invisible Knife (28 Mar. 1956)

TV Episode  |   |  Crime, Drama
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March must the mystery of how a man could be stabbed to death by an invisible knife.



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Episode cast overview:
Ewan Roberts ...
Inspector Ames
Hubert Gregg ...
Basil Pennacott
Henryetta Edwards ...
Alice Hays
Leslie Weston ...
Mark Baker ...


March must the mystery of how a man could be stabbed to death by an invisible knife.

Plot Summary | Add Synopsis


Crime | Drama




Release Date:

28 March 1956 (UK)  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs

Sound Mix:

(RCA Sound System)

Aspect Ratio:

1.33 : 1
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User Reviews

Hammer's Terence Fisher helms superior entry, with a touch of horror
6 September 2011 | by (Youngstown,Ohio) – See all my reviews

Episode 18, "The Invisible Knife" stands out as one of the best, as Colonel March is retained to protect the notorious Basil Pennacott (Hubert Gregg), who has profited from the deaths of 5 different partners in Singapore, Bombay, Suez, Casablanca, and Tangier. 4 were made to appear as natural deaths, but the fifth, Edmund Hays, was very mysterious indeed- murdered by an invisible assailant with an invisible knife. Pennacott insists that the superstitious Hays was killed while attempting to summon The Devil during a black rite, and now the man's brother (Leslie Weston) has vowed to avenge him by killing Pennacott. A dead parrot (shades of Monty Python!), its beak dipped in poison, was apparently sent from a pet shop run by Hays and his daughter Alice (Henryetta Edwards); March seeks to convince them both that he can deal justice to the ruthless Pennacott, not wishing to see bitterness destroy their lives. The solution is a genuine surprise, even if the supernatural really isn't involved. Another surprising bit of irony is that Hammer veteran Terence Fisher directs his only entry, among the nearly three dozen TV episodes he did from 1952 to 1959.

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