A psychiatrist, Martin Dysart, investigates the savage blinding of six horses with a metal spike in a stable in Hampshire, England. The atrocity was committed by an unassuming seventeen-year-old stable boy named Alan Strang, the only son of an opinionated but inwardly-timid father and a genteel, religious mother. As Dysart exposes the truths behind the boy's demons, he finds himself face-to-face with his own.
| Directing | Sidney Lumet | Director |
| Writing | Peter Shaffer | Writer |
| Production | Denis Holt | Associate Producer |
| Production | Elliott Kastner | Producer |
| Production | Lester Persky | Producer |
| Sound | Richard Rodney Bennett | Music |
| Camera | Oswald Morris | Director of Photography |
| Editing | John Victor-Smith | Editor |
| Art | Tony Walton | Production Design |
| Costume & Make-Up | Tony Walton | Costume Design |
| Sound | Angela Morley | Conductor |
| Production | Colin M. Brewer | Production Supervisor |
| Directing | David Tringham | Assistant Director |
| Camera | Matt Tundo | Camera Operator |
| Sound | James Sabat | Sound Mixer |
| Sound | Dick Vorisek | Sound Re-Recording Mixer |
| Sound | Jack Fitzstephens | Sound Editor |
| Sound | Sanford Rackow | Sound Editor |
| Editing | Harvey Rosenstock | Assistant Editor |
| Editing | Peter Shatalow | Assistant Editor |
| Art | Simon Holland | Art Direction |
| Art | Carol Spier | Assistant Art Director |
| Art | Ninkey Adamson | Assistant Art Director |
| Crew | Guenter Bartlik | Scenic Artist |
| Art | Gerry Holmes | Set Dresser |
| Art | Jack Carter | Construction Coordinator |
| Camera | Maurice Arnold | Focus Puller |
| Costume & Make-Up | Ron Berkeley | Makeup Artist |
| Costume & Make-Up | Ken Brooke | Makeup Artist |
| Costume & Make-Up | James Keeler | Hairdresser |
| Costume & Make-Up | Brenda Dabbs | Wardrobe Supervisor |
| Costume & Make-Up | Patti Unger | Wardrobe Master |
| Production | Rose Tobias Shaw | Casting |
| Production | Clare Walker | Casting |
| Crew | Kit West | Special Effects |
| Art | Dave Jordan | Property Master |
| Lighting | John Tythe | Electrician |
| Lighting | Chris Holmes | Gaffer |
| Camera | Ron Gillham | Key Grip |
| Camera | Denis Fraser | Best Boy Grip |
| Production | Arthur Carroll | Production Accountant |
