Cry Wolf (1947).

Errol Flynn and Barbara
Stanwyck in Cry Wolf (1947)

In Cry Wolf, Barbara Stanwyck arrives at an estate expecting to attend the funeral of her husband but encounters a household controlled by a sinister Errol Flynn. Based on Cry Wolf (aka The Demarest Inheritance) by future Edgar nominee Marjorie Carleton, the film costars Geraldine Brooks, Richard Basehart, and Jerome Cowan.