From the VHS cover:
A woman is found garroted in Kingsmarkham's multi-story car park, her body covered by a bloodstained curtain.
Before Detective Chief Inspector Wexford can solve the mystery of her murder, he narrowly escapes death himself....
While Wexford is recovering in hospital, his assistant Detective Inspector Burden, sets out in pursuit of the killer.
Gwen Robson's murder throws Wexford into the midst of a horrific nightmare of intrigue and death.

Some information from the cover has been extracted as it gives away the drama beforehand.

For the first fifteen seconds of the video there are problems with the picture, the first 30 seconds there's problems with the sound (the joys of VHS). From hereon the video is fine.