Paprika

A psychoanalyst has some high-tech way of getting inside people’s dreams and helping them battle their inner demons. 

That’s all the Paprika trailer tells us about the plot, but that’s all we need to know.
And that’s probably all there is, anyway. You don’t watch anime for the plot, even really good anime, although there is inevitably some idea informing the stunning imagery, usually something about the relativity of nationalistic morals, or the duality of mind and body, or the sexual appeal of octupi.

Literally setting such a movie in the world of dreams makes a lot of sense, because the audience can let go of its silly concerns about what the heck is actually going on. Watching this movie is going to be almost exactly like watching the trailer; it’s just going to last longer.

The core idea was also used in Dreamscape, although that movie was more about the real-world
intrigue around a presidential assassination attempt that takes place in the dream world.

The notion of going into others’ dreams to repair their trauma is a metaphor for our collaborative desire to reconnect with one another through the collective unconscious.