On
Valentine's Day 1900, students from Appleyard College, a girls' private school in Victoria, Australia, embark on a picnic to
Hanging Rock led by teachers Miss Greta McCraw and Mlle de Poitiers. Sara, a quiet child who arrived at the school from an orphanage and continues to suffer from the separation from her brother Bertie, is forced to stay behind. She remains at the school with teacher Miss Lumley and stern headmistress Mrs Appleyard. At Hanging Rock, the students settle down to their picnic; the teachers worry about the time, as the only two available watches have both stopped at exactly noon. Miranda, Marion, Irma, and Edith ask permission to explore the area. As they head to the Rock they are observed by a young Englishman, Michael Fitzhubert, and his Australian friend, Albert Crundall. The girls begin climbing, and fall asleep under a strange influence. When they awaken, Miranda, Marion and Irma proceed in a trance into a crevice. Edith, distressed, watches them go before screaming and fleeing back down alone. Mlle de Poitiers and the remaining students return to Appleyard College hours later than expected, having not found Miranda, Marion or Irma, and reporting that Miss McCraw has also gone missing. The police undertake their own search the next day without success. Edith provides a disjointed account in which she recalls seeing a strange red cloud and Miss McCraw running towards the Rock without her skirt on. After having nightmares about the girls' disappearances, Michael returns to search for them with Albert’s assistance. He stays overnight at the Rock, and the next day discovers Irma unconscious in a crevice, barefoot and without corset or stockings. Michael staggers out and collapses. Alarmed by his overnight absence, Albert returns with the police and finds Michael unconscious. As he is carried to the carriage, Michael passes Albert a torn scrap of Irma’s dress. Albert goes back to the rock and locates Irma, who has no memory of what happened. Miranda, Marion, and Miss McCraw remain missing; their unexplained disappearances cause a scandal, leading to girls being withdrawn from the school. News attention begins to intrude, and locals speculate about sexual motives, rape and murder. As the school's reputation and financial stability suffer, Mrs Appleyard informs Sara that her guardian has not contacted the College in months, that her tuition fees have not been paid, and that she is therefore no longer permitted to participate in extracurricular lessons. Sara spends much of her time in bed, mourning Miranda. Michael's dreams continue, with Miranda symbolized by the presence of a
white swan. Irma, physically recovered but still having no memory of the events on the day of the picnic, is to be sent back to Europe to join her parents. She visits the College during a dance lesson to bid the rest of the students farewell, and is screamed at by classmates who believe her to be culpable and demand she tell them what happened. After Irma departs in tears, Mlle de Poitiers discovers that Miss Lumley has restrained Sara against a wall under the guise of improving her posture. The night before the Easter vacation begins, Mrs Appleyard informs Sara that, as her fees remain unpaid, she must return to the orphanage. Mrs Appleyard falsely tells Mlle de Poitiers that Sara's guardian came to collect her and evades her attempts to ask whether Sara will be returning next term. Albert recounts to Michael a vivid dream in which his sister Sara visited him: "'Goodbye, Bertie,' she says. 'l’ve come a long way to see ya, and now I must go.' And she went." Sara's dead body is discovered in a greenhouse adjacent to the school building, having fallen from above; a gardener rushes to Mrs Appleyard's office to report the tragedy and finds her sitting calmly at her desk wearing funeral attire. A voiceover reports that Mrs Appleyard, facing the collapse of her school and haunted by the disappearances and ensuing events, was later found dead at the base of Hanging Rock, having apparently fallen while climbing it. Accompanied by a flashback to the day of the picnic, the voiceover states that the disappearance of Miranda, Marion, and Miss McCraw remains an unsolved mystery that continues to haunt the local community. ==Cast==