St. Valentine's Day, 1900. On a beautiful summer's day a party of Australian schoolgirls from an exclusive finishing school giddily prepare for an excursion to Hanging Rock, a magnificent natural monument drenched in a mysterious atmosphere. Among the white-gloved pupils of Appleyard College are senior boarders Miranda, Marion, Irma and Edith. The girls gain permission to explore the upper slopes of the rock. Edith takes a nap and wakes to discover that the other three girls have removed their shoes and stockings and have resumed their trek as if in a dream, disappearing into a passageway in the rock itself. Mathematics mistress Miss McCraw goes to investigate, but neither she nor the three other girls are ever seen again.