Release calendarTop 250 moviesMost popular moviesBrowse movies by genreTop box officeShowtimes & ticketsMovie newsIndia movie spotlight
    What's on TV & streamingTop 250 TV showsMost popular TV showsBrowse TV shows by genreTV news
    What to watchLatest trailersIMDb OriginalsIMDb PicksIMDb SpotlightFamily entertainment guideIMDb Podcasts
    EmmysSuperheroes GuideSan Diego Comic-ConSummer Watch GuideBest Of 2025 So FarDisability Pride MonthSTARmeter AwardsAwards CentralFestival CentralAll events
    Born todayMost popular celebsCelebrity news
    Help centerContributor zonePolls
For industry professionals
  • Language
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Watchlist
Sign in
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Use app
  • Cast & crew
  • User reviews
IMDbPro

Operation Conspiracy

Original title: Cloak Without Dagger
  • 1956
  • Approved
  • 1h 9m
IMDb RATING
5.5/10
199
YOUR RATING
Leslie Dwyer, Philip Friend, and Mary Mackenzie in Operation Conspiracy (1956)
Thriller

Intelligence officer fails a mission during WW2. Years later whilst working in a hotel he may discover what went wrong?Intelligence officer fails a mission during WW2. Years later whilst working in a hotel he may discover what went wrong?Intelligence officer fails a mission during WW2. Years later whilst working in a hotel he may discover what went wrong?

  • Director
    • Joseph Sterling
  • Writer
    • A.R. Rawlinson
  • Stars
    • Philip Friend
    • Mary Mackenzie
    • Leslie Dwyer
  • See production info at IMDbPro
  • IMDb RATING
    5.5/10
    199
    YOUR RATING
    • Director
      • Joseph Sterling
    • Writer
      • A.R. Rawlinson
    • Stars
      • Philip Friend
      • Mary Mackenzie
      • Leslie Dwyer
    • 9User reviews
    • 2Critic reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos15

    View Poster
    View Poster
    View Poster
    View Poster
    View Poster
    View Poster
    + 9
    View Poster

    Top cast27

    Edit
    Philip Friend
    Philip Friend
    • Major Felix Gratton
    Mary Mackenzie
    • Kyra Gabaine
    Leslie Dwyer
    Leslie Dwyer
    • Fred Borcombe
    Allan Cuthbertson
    Allan Cuthbertson
    • Colonel Packham
    John G. Heller
    John G. Heller
    • Peppi Gilroudian Dress Designer
    Chin Yu
    • Yan Chu
    Bill Nagy
    Bill Nagy
    • Mario Oromonda
    Patrick Jordan
    Patrick Jordan
    • Captain Willis
    Marianne Stone
    Marianne Stone
    • Mrs. Markley
    Frank Thornton
    Frank Thornton
    • Mr. Markley
    Gerrey Levey
    • Night Club Entertainer
    • (as Gerry Levey)
    Boris Ranevsky
    • Antoine
    María Mercedes
    • Spanish Girl
    Patricia Haynes
    • Marigold
    Stuart Mitchell
    Ivor Dean
    Ivor Dean
    • Night Club Proprietor
    John Scott
    Barbara Burke
    • Waitress
    • Director
      • Joseph Sterling
    • Writer
      • A.R. Rawlinson
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews9

    5.5199
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10

    Featured reviews

    6Neil-117

    Ripping spy yarn.

    Feisty female reporter meets an old flame, but is he mixed up in the riddle of the body in the bathroom? And what is the hotel detective doing at the weapons testing facility? Rest assured, these and other intriguing questions are eventually answered.

    The absence of hi-tech spy gizmos of the James Bond variety is made up for by plenty of opportunities for sofa-based detectives to test their skill in unraveling a good mystery.
    4Leofwine_draca

    Plodding spy story

    CLOAK WITHOUT DAGGER is a cheapie put out by Balblair Productions, who released precisely three films during their short-lived career in the film business: this, THE BLACK RIDER, and STOCK CAR. All of them were written by prolific screenwriter A. R. Rawlinson and STOCK CAR is probably the best of the rather nondescript bunch, a gangster story set in and around a garage. CLOAK WITHOUT DAGGER is more undistinguished, a film in which the villains are spies working for their own purposes.

    It starts off well with some top intrigue inside a nondescript hotel and goes downhill from there. Leslie Dwyer is a likable enough familiar face in the British B-film genre but he's miscast as a detective here. Mary Mackenzie is much better as the plucky heroine who literally stumbles over a corpse at one point. There are welcome roles for Allan Cuthbertson, Bill Nagy, and Frank Thornton, but the whole thing feels rather lifeless and drawn out, a far cry from the best of the spy thriller genre. Perhaps the budget just wasn't up to the job.
    malcolmgsw

    Which is the worse title?

    This was called Cloak without dagger in the UK and Operation Conspiracy in the US.Now which is the worst?The leading lady is Mary Mackenzie who is rather good.Sadly she died in a car crash when only 44.Leslie Dwyer plays for him the unfamiliar role of a detective.Late in life he would become a TV star.The film is very cheaply made and it shows.There is the old quota device of having all actors on camera so that they can speak their lines and there would be no need to edit the film and eliminates the necessity for any close ups.The film is a typical product of its era,particularly since it harks back to missed opportunities during the war.It is a fairly exceptional film that will not linger in your memory once the end title comes up.
    3planktonrules

    Poorly written and full of plot problems.

    "Operation Conspiracy" is a clumsily written spy story. It begins in London during a fashion show. A runway model faints and soon after dies. A reporter who used to be a military spy during WWII catches the girl as she falls and she's the main character in this film.

    Later, the reporter lady meets one of the staff at the hotel and he happens to be a long lost love. However, now he's a waiter and says he has no interest in this old past life.

    What follows is a clumsy flashback sequence where she spots a wanted man without much information about him and only seconds after she hears about him. She just KNOWS it's him. In other words, she had knowledge NO ONE could have had unless they were reading a script.

    After the flashback, the woman finds a dead man in the hotel. When she tells her old friend, he minimizes it...like she's some hysterical woman even though he knows she used to be a military police operative. It's obvious that either this is really badly written, he's working under cover OR he's a part of whatever nonsense is happening. She doesn't seem to think much of this and just goes to bed instead of to the police.

    What follows is a spy yarn which OFTEN has plot holes and is very poorly written in places...such as when she passes out for no apparent reason. People do NOT do this...it only happens in films. She also hires a guy to work as a private detective for her even though she has no proof of who he is! And, by this point I was bored because of the indifferent writing...and I assume you'll likely feel the same.
    5Sleepin_Dragon

    I've never seen the need for intelligence.

    A harmless thriller, it's easy viewing. There's nothing too taxing here, and that's the main problem, it's very clunky, and talk about clichés, everything you think will happen, does. The twist was exactly the one I had expected, but it was watchable enough.

    It was made with a small budget, that doesn't matter, the helicopter shots look good. It doesn't show The British Army in the best of lights.

    Mary Mackenzie did a good job, I was saddened to read that she dies so young.

    Leslie Dwyer is perhaps the best performer for me, despite being surrounded by dashing young things, I feel he is the standout. Funny how he would become such a well known face in later life with Hi De Hi.

    It's rather amusing seeing Frank Thornton in the part of a villain, a very early part for him.

    Alright, 5/10.

    More like this

    Carry on at Your Convenience
    6.2
    Carry on at Your Convenience
    Not as a Stranger
    6.7
    Not as a Stranger
    Part-Time Wife
    5.2
    Part-Time Wife
    Strip Tease Murder
    5.2
    Strip Tease Murder
    The Whole Truth
    6.3
    The Whole Truth
    The Adventures of P.C. 49: Investigating the Case of the Guardian Angel
    5.5
    The Adventures of P.C. 49: Investigating the Case of the Guardian Angel
    Night Ride
    5.6
    Night Ride
    The Moonstone
    5.0
    The Moonstone
    The End of the Line
    5.4
    The End of the Line
    The Diamond Wizard
    5.8
    The Diamond Wizard
    SOS Pacific
    6.2
    SOS Pacific
    Nowhere to Go
    6.8
    Nowhere to Go

    Storyline

    Edit

    Did you know

    Edit
    • Goofs
      When Kyra and the hotel detective try to penetrate the army encampment she manages in several seconds to cut a hole through the chain-link fence large enough for them to enter with relative ease.

    Top picks

    Sign in to rate and Watchlist for personalized recommendations
    Sign in

    Details

    Edit
    • Release date
      • September 27, 1957 (United States)
    • Country of origin
      • United Kingdom
    • Language
      • English
    • Also known as
      • Cloak Without Dagger
    • Production company
      • Balblair Productions
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      1 hour 9 minutes
    • Color
      • Black and White
    • Aspect ratio
      • 1.37 : 1

    Contribute to this page

    Suggest an edit or add missing content
    Leslie Dwyer, Philip Friend, and Mary Mackenzie in Operation Conspiracy (1956)
    Top Gap
    By what name was Operation Conspiracy (1956) officially released in Canada in English?
    Answer
    • See more gaps
    • Learn more about contributing
    Edit page

    More to explore

    Recently viewed

    Please enable browser cookies to use this feature. Learn more.
    Get the IMDb App
    Sign in for more accessSign in for more access
    Follow IMDb on social
    Get the IMDb App
    For Android and iOS
    Get the IMDb App
    • Help
    • Site Index
    • IMDbPro
    • Box Office Mojo
    • License IMDb Data
    • Press Room
    • Advertising
    • Jobs
    • Conditions of Use
    • Privacy Policy
    • Your Ads Privacy Choices
    IMDb, an Amazon company

    © 1990-2025 by IMDb.com, Inc.