In ancient Crete, a monster called the Minotaur (half bull, half man) can only be satisfied by virgin sacrifices. The evil ruler of Crete is determined to keep the monster happy by sacrificing as many of the island's virgins as he can, but a pair of friends determine to kill the monster and stop the sacrifices.
When the father of privileged Rosina da Silva violently dies, she decides to pass herself off as a gentile and finds employment with a family in faraway Scotland. Soon she and the family father, Charles, start a passionate secret affair.