The Zero Imperative (1993)

UK, 1994
65m, 90m (extended version)
videotape, colour
stereo, English

A British science fiction film directed Bill Baggs.

Plot Summary

Former UNIT scientist and her assistant Bayliss investigate a series of murders in a psychiatric hospital that is due to be closed soon. The hospital is offered a future by industrialist Peter Russell who wants to buy it – but Shaw and Bayliss must discover the secrets harboured by Doctor Dove who seems to be working with a centuries-old horror lurking in the grounds.


Directed by: Bill Baggs
© BBV 1994
Executive Producer: Andy Grant
Produced by: Bill Baggs
[Written] By: Mark Gatiss
Assistant Director: David Rowston
2nd Assistant Director[s]: Patricia Merrick, Edward Salt
Director of Photography: Dick Kursa
Gaffer/Camera Assist: David Hilton
Editor: Michael Duxbury
Edit Facilities: WLC
Music & Sound Design: Mark Ayres
Make-Up Designer: Sarah Dickinson
Art Director: David Rowston
Locations: Epsom, Surrey, England, UK, Special Thanks: The Who Shop

Caroline John (Liz Shaw)
Jon Pertwee (Dr O'Kane)
Sylvester McCoy (Dr Dove)
Colin Baker (Russell)
Linda Lusardi ([Lou] Bayliss)
David Terence (Patient Zero)
Mark Gatiss (Dr Bruffin)
Nicola Fulljames (Dr Hearst)
Louise Jameson ([Patricia] Haggard)
Patricia Merrick (Dr Gilchrist)
Jonathan Rigby (Cummings)
Sophie Aldred (P.R.O.)
Simon Messingham, Alexander Kirk (orderlies)
Bill Baggs (Daniel)
Daniel Mills (boy's voice)
Peter Davison [Patient One – uncredited]

Alternative Titles

: The Zero Imperative
The Stranger: The Zero Imperative

P.R.O.B.E.: The Devil of Winterborne (1995)
P.R.O.B.E.: Unnatural Selection (1997)
P.R.O.B.E.: Ghosts of Winterborne (1996)

See also



  • Celestial Toyroom no.251 – review (by A. N. Bradbury)
  • Doctor Who Magazine no.219 pp.12-13 – article
  • Doctor Who Magazine no.220 (December 1994) – review (by Craig Hinton)