The plot of the film, which is in early development, is being kept under wraps, though Riley Sager’s book is centered on a young woman, Maggie, whose family fled their Victorian home 25 years earlier in an event that inspired her father to pen a best-selling nonfiction book claiming they experienced a haunting. Maggie, now an adult, doesn’t remember those events and doesn’t believe her father’s book. But when she... see more