Dismayed by conditions in a Welsh mining town, a woman (Bette Davis) sets up a school in her home for the local villagers, despite the disapproval of the local Squire (Nigel Bruce). One of the young miners (John Dall) turns out to be a brilliant student. Based on the autobiographical play by Emlyn Williams.
Bette Davis as Miss Lilly Moffat
John Dall as Morgan Evans
Joan Lorring as Bessie Watty
Nigel Bruce as The Squire
Rhys Williams as Mr. Jones
Rosalind Ivan as Mrs. Watty
Mildred Dunnock as Miss Ronberry