John Tarrant (Michael Caine), die bij de Britse geheime dienst werkt, wordt geconfronteerd met de ontvoering van zijn zoontje. Ze willen geen geld maar diamanten. John roept de hulp in van zijn medewerkers maar ziet al snel dat die niet te vertrouwen zijn.
Nee, helaas is The Black Windmill nog niet beschikbaar op Netflix in Nederland.
| Directing | Don Siegel | Director |
| Writing | Clive Egleton | Novel |
| Editing | Antony Gibbs | Editor |
| Art | Peter Murton | Art Direction |
| Costume & Make-Up | Anthony Mendleson | Costume Design |
| Costume & Make-Up | Freddie Williamson | Makeup Artist |
| Production | Eva Monley | Production Manager |
| Camera | Ousama Rawi | Director of Photography |
| Production | David Brown | Executive Producer |
| Writing | Leigh Vance | Screenplay |
| Directing | Kip Gowans | Assistant Director |
| Production | Scott Hale | Associate Producer |
| Sound | Les Wiggins | Sound Editor |
| Production | Don Siegel | Producer |
| Sound | Gerry Humphreys | Sound Recordist |
| Sound | John W. Mitchell | Sound Recordist |
| Production | Richard D. Zanuck | Executive Producer |
| Sound | Roy Budd | Original Music Composer |
| Camera | Dewi Humphreys | Focus Puller |
| Directing | Angela Allen | Continuity |
| Camera | Colin Davidson | Clapper Loader |
| Lighting | Nobby Cross | Gaffer |
| Costume & Make-Up | Rosemary Burrows | Wardrobe Supervisor |
| Camera | James Devis | Camera Operator |
