Tower of Evil

Tower of Evil, also known by the titles Horror on Snape Island and Beyond the Fog in the United States and Horror of Snape Island in Canada, is a 1972 British horror film. The film was shot at Shepperton Studios in Shepperton, Surrey, England in 1971.

The film was dismissed as mere exploitation fodder by many critics. Film critic Leonard Maltin gave the film a BOMB rating and mockingly said One of the Horrors of Snape Island is the film itself.However, over the years, the film has been embraced as something of an underground classic by the horror community. The Terror Trap horror review rated the film positively and said Think the Brits are uptight, watch this fun slasher flick.... Elite Entertainment released Tower of Evil on DVD for the first time in 1999. On December 12, 2008, Turner Classic Movies showed the film as part of their late night TCM Underground series. ........

Source: Wikipedia