When a sightseeing trip leads them astray, a group of tourists (including the glamorous Joan Collins) find themselves lost in an underground labyrinth where they come face to face with a monk (Ralph Richardson) who foretells their futures. Freddie Francis directs this vintage horror classic based on the chilling stories of William M. Gaines and Al Feldstein, a film not to be confused with the long-running HBO anthology series.

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