This film just opened in Toronto and I was anxious to see it. I found the historical references fascinating. During the early 1900s, spiritualism was all the rage in various circles, especially among scientists. As an electrical engineer, I was surprised to learn that the inventor of PCM pulse code modulation, the basis of all the digital world, was Alec Harley Reeves. He was trying to discover a method to communicate with this dead mother. What I most enjoyed about the film was the immediacy. It was almost like I was not watching the movie but I was part of it. Sort of like that scene in the park in "Blow-Up" where the whole world stops. The shots of Kristen Stewart are amazing, almost portrait like. She certainly builds the tension throughout the film, tremendous acting.