La Sainte Famille on AllMovie

Cults of noteworthy psychological unhealthiness exist in and around most countries. This French/Swiss tragedy, based on a true story, tells of a cult originating in Catholicism, which believed that the Virgin Mary communicated with them through a nun's automatic writing. As internal tensions grow, the cult attempts to indoctrinate a young woman into receiving direct messages from the Virgin. When she cannot, they beat her to exorcise an imagined obstructing devil. This results in the girl's death.