The Avengers (1961–1969)
5 user 1 critic

The Positive Negative Man 

A scientist is killed by having been hurled through and embedded in a wall. This is the latest death of a person engaged in the government's Project 90, whose documents can also not be ... See full summary »


Robert Day


Tony Williamson (teleplay)




Episode complete credited cast:
Patrick Macnee ... John Steed
Diana Rigg ... Emma Peel
Ray McAnally ... Creswell
Michael Latimer ... Haworth
Caroline Blakiston ... Cynthia Wentworth-Howe
Peter Blythe ... Mankin
Sandor Elès ... Maurice Jubert
Joanne Dainton Joanne Dainton ... Miss Clarke
Bill Wallis Bill Wallis ... Charles Grey
Ann Hamilton Ann Hamilton ... Receptionist


A scientist is killed by having been hurled through and embedded in a wall. This is the latest death of a person engaged in the government's Project 90, whose documents can also not be found. When the Avengers investigate they discover a bizarre means of murder whereby the killer can carry an electrical charge to the victim without being electrocuted themselves. Written by don @ minifie-1

Plot Summary | Add Synopsis







Release Date:

17 January 1968 (USA) See more »

Company Credits

Production Co:

ABC Weekend Television See more »
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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


"Risley Dale" as a name is markedly close to "Risley" which was at the time a secure site and Centre of British Nuclear Fuels Ltd. See more »


Mrs Peel parks her car at the Risleydale at an angle just off the edge of the bitumen. A distant shot later on shows the car parked parallel to the bitumen but some distance from the edge. When the blue van departs after Mrs Peel has been electrocuted, her car is parked half-on, half-off the bitumen. See more »


Cynthia Wentworth-Howe: I'm Cynthia Wentworth-Howe, Top Hush Secretary to the Minister.
John Steed: How do you do?
Emma Peel: Top Hush?
Cynthia Wentworth-Howe: We assistants come in four grades: 'Confidential', 'Secret', 'Most Secret' and 'Top Hush'.
John Steed: Eh, you've reached the top of your profession, then?
Cynthia Wentworth-Howe: Not quite. My ultimate ambition is to achieve the special category of 'Button Lip', the pinnacle of secrecy. Not a single syllable passed on before being vetted, examined, coded and cleared.
See more »

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User Reviews

Top of the range
26 April 2008 | by edward-kellowSee all my reviews

This is the best episode on the disc I have been watching - witty, poised, and an almost Bond type insouciance in the face of hi-tech murders. The wit stops the plot from being mechanical and what a fantastic cast. Handsome Peter Blyth and Michael Latimer, great to see the young Caroline Blakiston as a very arch secretary who later appeared in Sunday Bloody Sunday as a drunken party goer provoking the immortal lines "here come those tired old tits again" - protocol gone mad and yet the behaviour is true enough to reality or at least it is a version of how the Brits used to see hush hush civil servants. It's a lost world. The technology is fun and drives the plot along. Reminds me of those classy 40s detective movies with Myrna Loy. The architecture, the abandoned research site with the railway tracks like something out of the famous five and of course the cars - a splendid Morris Minor van all add heaps of atmosphere.

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