The Legend of Hell House (1973)
So long as you're interested in the journey, no matter how unsatisfying the destination proves to be, the majority of The Legend of Hell House makes for an enjoyably quirky haunted house flick from a time when science (or at least semi-respectable pseudoscience) was considered compatible with the supernatural. To put that another way, this is the kind of thing Ghostbusters was parodying, a world where psychic phenomenon is considered commonplace and spiritual questions can be studied scientifically and associated problems potentially addressed with technology. That's one of several elements that make this entertaining, if not good. Likewise, the story (adapted by the legendary Richard Matheson from his own novel), populates the cast entirely with characters who are professionals in their field. This means the characters reacting (or through the first half of the movie mostly not reacting) to what's occurring around them have incentives to see this play out and unravel the m...