[2] A fifth film, written and directed by Bill Baggs, was released 20 April 2015 with Hazel Burrows taking over as Liz Shaw.

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 summoned to investigate the savage murder of retired headmaster Mr. Whittaker and his dog, Liz Shaw is disturbed to find evidence of a satanic ritual near the scene of the crime.

The trail leads of deceit and corruption extends to the current occupants of nearby Winterborne School, where it appears that someone is determined to cover up an ancient secret – at any cost.

With another animal having bit the dust, the current headteacher accused of murdering a pupil, and one of the school's oldest employees having been stabbed with a knife, Liz finds herself under increasing pressure from all sides to produce results, especially with P.R.O.B.E.

In 1975, the British Government quietly closed down a secret evolutionary project codenamed BEAGLE, ordering the destruction of all research materials.

But when the body of its last victim disappears, and a book of black magic spells is stolen from a local museum, Liz Shaw begins to wonder if the ghosts of the past have really been laid to rest.

Forced into an unholy alliance with the school's disgraced headmaster, Liz must fight not only her own warring emotions, but a festering evil that threatens to corrupt the Earth again after 100 years.

Presented as Case File video-diary entries by main character Giles, often including illustrations and references to various Doctor Who-related media.