Also known as 'Blind Terror', this 70's British thriller, scripted by Brian Clemens and directed with great assurance by Richard Fleischer, is one of the highpoints of a prolific genre of British cinema, joining 'And Soon The Darkness', 'Frenzy' and 'Taste Of Fear' as one of the very best. Okay, the plot concerning a vulnerable heroine in peril from an unknown assailant had been recycled many times, but Fleischer manages to squeeze every last drop of tension from the situation. The scenes where Sarah(Mia Farrow) moves from room to room in the house, unaware of the corpses around her are quite brilliant, and I love that the killers motivations are as mundane as a splash of mud on their boots. The cast is full of familiar British character actors, and is headed by the imported star, in this case Farrow doing an excellent job in a difficult role. Another big plus is veteran composer Elmer Bernstein's superb score.
A very fine British psychological thriller, borderline Horror, that comes highly recommended from this viewer at least. Very nice picture/audio quality on this release as well. 5out of 5