The Sorcerers is a 1967 British science fiction horror film directed by Michael Reeves, starring Boris Karloff, Catherine Lacey, Ian Ogilvy, and Susan George.

Mike leaves without informing Nicole, who decides to go a night club with their friend Alan.

Police investigators track down Mike, and in the ensuing chase, Marcus interferes with Estelle's control.

Reeves and his childhood friend Tom Baker re-wrote sections of the screenplay, including the ending at Karloff's insistence, wanting his character to appear more sympathetic.

All the same, Reeves manages to build a considerable charge, particularly in the second half of the film, with a superbly baleful performance by Catherine Lacey (Karloff is his usual reliable self, but a shade weary), and a script which comes as close to authentic Sadisme as anything since Peeping Tom (1960) in its detailing of the increasing urgency of Estelle's thirst for experience: from innocent splashing in a swimming pool and highway speeding on a motor-cycle, through the first taste of brutality to two murders, the first a flurried affair with scissors, the second much more leisurely and with the added refinement of prior terrorisation.

It is the overall effect that impresses rather than any individual scene or composition (unlike Revenge of the Blood Beast), but the "psychedelic experience" is particularly well done, with the victim's face literally disintegrating in blobs of colour.

"[5] Leslie Halliwell said: "Rather slight but oddly memorable horror film, with an elegant old lady becoming the real monster.

[8] For her performance, Catherine Lacey won a Silver Asteroid award as Best Actress at the Trieste Science Fiction Film Festival in 1968.

Burke had already told Mains about Michael Reeves denying him a screenwriting credit, but included in the boxes were several lawyers letters pertaining to the fact that this was the case.

The finished book, with an introduction by Matthew Sweet and additional material from Kim Newman, Benjamin Halligan and Tony Earnshaw, was published in October 2013.