The emcee at the Heartland Film Festival screening introduced it as something more akin to “Black Swan,” if that gives you any sort of flavor.
If Larraín dipped his toe in gothic waters with “Jackie,” and its many scenes where Natalie Portman drifted through an empty White House like a ghost haunting her previous life, here he jumps all the way in, staging “Spencer” as a psychodrama swimming the same tides as “Repulsion,” “Rosemary’s Baby,” or “Black Swan.”