Pyrexia

Pyrexia is a weird and somewhat wonderful blend of surrealism and sf, with plenty of satirical shots at the Information Age we're now entering in the "real world" and even some tasty, spaced-out recurrent erotic imagery as a bonus treat. Abelard is a typical citizen of a human city nestled along the sheer cliff walls of Mars' imposing Mariner Valley. His culture is high-tech, carried to the isolating extreme, his life dominated by a combo of computer, Internet and virtual reality so advanced (and so seductive) that nobody leaves their sealed apartments.
The only escape from mindless and pointless information management "work" is the GUM. Far beyond our concept of VR, the "Global Un-Manifested" device puts the user's consciousness into the mind of another person, in another time and place, even the other dimensions and universes.
There's a twist ending and the "truth" (about the GUM machine and its relation to our "modern/real" world that Abelard reasons out) pulls a lot of loose ends unexpectedly together and makes for a more satisfying conclusion than I would have predicted. Pyrexia is often grand fun, its amiable confusion transmuting into a glorious satire of career-fixated go-getters and their high-tech toys.