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The Secret Adversary (1983)

After two old friends accidentally meet and resolve to become investigators for hire, they quickly become embroiled in a missing treaty and a Bolshevik conspiracy.


Tony Wharmby


Agatha Christie (novel), Pat Sandys (screenplay) | 1 more credit »




Cast overview, first billed only:
James Warwick ... Tommy Beresford
Francesca Annis ... Tuppence Cowley
Gavan O'Herlihy ... Julius P. Hersheimmer
Alec McCowen ... Sir James Peele Edgerton
Honor Blackman ... Rita Vandemeyer
Peter Barkworth ... Mr. Carter
Toria Fuller ... Jane Finn / Annette
John Fraser ... Kramenin
George Baker ... Whittington
Donald Houston ... Boris
Joseph Brady ... Dr. Hall
Wolf Kahler ... The German
Reece Dinsdale ... Albert
Peter Lovstrom ... Henry
Matthew Scurfield ... Conrad


Childhood friends Tommy and Tuppence (Prudence) meet in London after having served in World War I. Recently "demobed", short of money, and with no job prospects, they decide to become adventurers for hire. Soon, they are employed by the British Government to locate a secret treaty signed before the war. Bolsheviks, kidnappings, missing persons, and a marriage proposal for Tuppence, keep things moving for The Young Adventurers, Ltd. Written by Mike Smith <mismith@brody.med.ecu.edu>

Plot Summary | Add Synopsis


PG | See all certifications »

Did You Know?


This film is very accurate in comparison to the book. See more »


Tuppence gets 50 pounds from Mr. Whittington. Two days later, 3 at the most, Tommy says they only have 5 pounds left. All we know is they were out to an elegant dinner once or maybe twice which would not have used up 45 pounds in 1919. See more »


[first lines]
Tommy Beresford: Tuppence?
Tuppence Cowley: Tommy! You! Of all people, you.
[They embrace. Tuppence shows Tommy the bread crumbs in her hand]
Tuppence Cowley: Ducks.
Tommy Beresford: Of course.
Tuppence Cowley: Oh, dear old bean.
See more »


Version of Adventures Inc. (1929) See more »

User Reviews

Who is Jane Finn?
3 February 2020 | by Sleepin_DragonSee all my reviews

It's a delicious adaptation, very much of its time, but also very faithful to the original text. It does surprise me that this came about after the series, but such are the performances you'd never know. Very much the origins story for Tommy and Tuppence, Warwick and Annis bring the characters to live beautifully, in a way The BBC failed to do with the attempted retelling.

Almost whimsical in tone, it's full of spies, disguises and intrigue, if you love a mystery, this is definitely for you. Great production values, wonderful sets and costumes, it looks great, the camera work suits it also.

I hadn't seen it for a while, I muddled up a few scenes from The Seven Dials Mystery, not surprising as Warwick appeared in multiple productions. I enjoy almost all of the performances, Honor Blackman in particular, she's great in the part, rather ruthless.

It's a very enjoyable watch. 8/10

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Release Date:

9 October 1983 (UK) See more »

Also Known As:

Тайный противник See more »

Filming Locations:

London, England, UK See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
See full technical specs »

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