An overlooked and little known British horror/thriller.
The excellent cast is the main thing going for it, including Deborah Kerr, David Niven, David Hemmings and Sharon Tate, who as well as looking great manages to put in a great performance.
The story focuses on a French land owner (Niven) who is summoned back to his vineyard due to the crops failing for a thrid year in a row. As much as he tries to prevent his wife and children from following him, they do. It isn't long before his wife (Kerr) starts to notice strange and mysterious things, mostly involving the strange siblings who inhabit the castle, Christian and Odile (Hemmings and Tate). It soon becomes clear that for centuries the family has been involved in Pagan rituals and the time has come for Niven to sacrifice himself.
When watching you can't help but be reminded of other superior British horror films, such as Deborah Kerr protecting the children in The Innocents and the pagan rituals of The Wicker Man.
Whilst Eye Of The Devil has good things going for it such as atmospheric cineamatography it no doubt has it's flaws. Still with a cast like this you would be silly to pass it by.