The Zero Imperative (home video)

Synopsis
Former UNIT luminary Liz Shaw and her assistant Bayliss are investigating a series of bizarre murders, all committed near a soon-to-be-closed psychiatric hospital.

When the hospital is unexpectedly reprieved by rich Industrialist Peter Russell events seem to move out of Liz's control. Are the incumbent director of the clinic, Doctor Dove and his predecessor Doctor O'Kane harbouring the killer? What is the centuries-old horror hidden in the grounds?

And what exactly is the secret of room zero?

Plot
to be added

Cast

 * Liz Shaw - Caroline John
 * Dr. O'Kane - Jon Pertwee
 * Dr. Dove - Sylvester McCoy
 * Russell - Colin Baker
 * Lou Bayliss - Linda Lusardi
 * Patient Zero - David Terence
 * Dr. Bruffin - Mark Gatiss
 * Dr. Hearst - Nicola Fulljames
 * Patricia Haggard - Louise Jameson
 * Dr. Gilchrist - Patricia Merrick
 * Cummings - Jonathan Rigby
 * P.R.O. - Sophie Aldred
 * Orderly - Simon Messingham
 * Orderly - Alexander Kirk
 * Daniel - Bill Baggs
 * Boy's Voice - Daniel Mills

Production crew
to be added

Story notes

 * This film marks the debut of the Preternatural Research Bureau (PROBE) and the return of Caroline John as Liz Shaw.
 * Several cast members previous portrayed (other) roles in Doctor Who; Jon Pertwee (Third Doctor who acted along side Caroline John), Colin Baker (Sixth Doctor), Sylvester McCoy ([[Seventh Doctor), Sophie Aldred (Ace) and Louise Jameson (Leela).
 * Additionall Simon Messingham went on to write/had written: NA: Strange England EDA: The Face-Eater, The Infinity Race, PDA: Tomb of Valdemar and The Indestructible Man.
 * This is the first of four films featuring the PROBE organization. As such, it pre-dates Torchwood as the first ongoing spin-off of the Doctor Who universe.

Myths
to be added

Filming Locations
to be added

Discontinuity, Plot Holes, Errors
to be added

Continuity

 * Liz Shaw last appeared on-screen in DW: The Ambassadors of Death, she last appeared with the Third Doctor in PDA: The Wages of Sin, he last appearance is in (the future) in NA: Eternity Weeps.

DVD, video, and Other releases
to be added