Boogeyman horror that is now perhaps more interesting for its place in British horror history and its director's canon.
There are enough ingredients here for a classic, but I don't think it quite comes together. I find the comedy and horror do not gel well. The claustrophobic setting is not exploited to its true horrific potential; I think the similar CREEP is much more effective. The recent Blu Ray has led to this being rediscovered and marked as a minor masterpiece by some; I don't think that label will stick (whereas CREEP is due a reappraisal...).