Build a movie plot around this: when becomes invisible ? Mary
A:
Mary Henry (Candace Hilligoss) is riding in a car with two other young women when some men challenge them to a drag race. As they speed across a bridge, the women's car plunges over the side into the river. The police spend three hours dragging the murky, fast-running water without success. Mary miraculously surfaces, but she cannot remember how she survived.Mary then drives to Utah, where she has been hired as a church organist. At one point, she can get nothing on her car radio but strange organ music. She passes a large, abandoned pavilion sitting all by itself on the shores of the Great Salt Lake; it seems to beckon to her in the twilight. Shortly thereafter, while she is speeding along a deserted stretch of road, a ghoulish, pasty-faced figure (never identified, but called "The Man" in dialogue and played by director Herk Harvey, uncredited) replaces her reflection in the passenger window and stares at her. When The Man suddenly appears in front of her, she swerves off the road. At a gas station, the attendant tells her the pavilion was first a bathhouse, then a dance hall, and finally a carnival before shutting down.In town, Mary rents a room from Mrs. Thomas; John Linden, the only other lodger, wants to become better acquainted with the blonde newcomer, but she is not interested. That night, she becomes upset when she sees The Man downstairs in the large house and retreats to her room. Mrs. Thomas, who brings her some food, says she did not pass anyone.Soon, Mary begins experiencing terrifying interludes when she becomes invisible and inaudible to the rest of the world, as if she simply is not there. When The Man appears briefly in front of her in a park, she flees, right into the arms of a Dr. Samuels. He tries to help her, even as he acknowledges he is not a psychiatrist.Her new employer, the minister (Art Ellison), is put off when she declines his suggestion of a reception to meet the congregation. When she practices for the first time, she finds herself shifting from a hymn to eerie music. In a...