Pretty decent moody, intense, creepy psychological thriller with two of my favourite thespians in that department--Anthony Perkins and Julie Harris. It's a tad claustrophobic and difficult to get into at the start, because of this aforementioned intensity, but if you stick with it, it's quite intrinsically rewarding and definitely not a late-night waste of 90 minutes.
When Perkins' 'Allan' picks up a picture and says, 'Mother,' I couldn't help but smile. What an interesting and ill-fated actor.