|Edward Woodward||Sergeant Neil Howie|
|Christopher Lee||Lord Summerisle|
|Diane Cilento||Miss Rose|
|Lindsay Kemp||Alder MacGreagor|
|Donald Eccles||T.H. Lennox|
Sergeant Howie arrives on the small Scottish island of Summerisle to investigate the report of a missing child. A conservative Christian, the policeman observes the residents' frivolous sexual displays and strange pagan rituals, particularly the temptations of Willow, daughter of the island magistrate, Lord Summerisle . The more Sergeant Howie learns about the islanders' strange practices, the closer he gets to tracking down the missing child.