Hmm. Well. I've got one sort of similar. It's very psychological. And sooorta deals with death and memories if you look at it that way. The ending is kind of left to interpretation. It's very good though.
Session 9. I will warn you, it takes quite a while for things to really get going. It's kind of slow, but it works well. All that build up is needed. I know some people don't have the patience for it. But it's really good. And the people that actually watched the whole thing loved it. There's a moment where you'll pretty much suddenly be very interested because shit gets real. Though some are interested through out.
Anyway, I'm rambling. Point is, Session 9. Fantastic movie that's sorta in the realm of what you want. Strongly recommended.