The faker (1929)

Rita Martin, the partner of a phony spiritualist who uses information supplied by her to gull and astonish the rubes, gets work as private secretary to John Clayton, a wealthy man who has just disinherited his worthless son, Frank, and left his entire fortune to his upright stepson, Bob Williams. At Frank's request, the spiritualist later performs for the elder Clayton a seance during which Rita impersonates the late Mrs. Clayton and arranges for a reconciliation between Frank and his father. Rita falls in love with Bob, however, and, in order to protect Bob's interests against Frank's, exposes the spiritualist as a faker. Frank is disgraced in his father's eyes, and Bob quickly forgives Rita for her past complicity in Frank's schemes.