The Zero Hour(1918)

Twin sisters Fanny and Evelyn Craig are unaware that their stepfather, Micah Parrish, is a fake spiritualist until his lack of money forces them to return home from boarding school. Evelyn eagerly assists Parrish and his even more unscrupulous partner, Esau Brand, while Fanny, disgusted, leaves home to become lawyer Bruce Taunton's secretary.