Eye of the Devil

When London-based vintner Phillippe de Montfaucon (David Niven) receives the bad news that dry weather is expected to destroy crops in his vineyard in France for the third year in a row, he immediately leaves for his castle on the continent, Bellenac, instructing his wife Catherine (Deborah Kerr) to stay behind with their children. However, Catherine's curiosity gets the better of her and she arrives at Bellenac to discover that the villagers who tend the grapes and watch the castle are members of a pagan cult, and that they believe the death of Marquis may be required for the future health of the crops. (official distributor synopsis)