Rent The Ghost of St. Michael's (1941)

Hugely popular on its release, The Ghost of St Michael's features Hay in one of his signature roles as William Lamb, a pedagogue called out of retirement because of the war to join the staff of a school that has been evacuated to a remote Scottish castle. According to legend the castle is haunted and whoever should hear the sound of ghostly bagpipes will surely meet a grisly end. With members of the school's staff dropping like flies, Lamb is called upon to solve the gruesome mystery. Featuring delightful interplay between Hay and Claude Hulbert, there is also a standout turn from John Laurie as the school caretaker given to telling the fearsome story of the castle's ancient curse.