Sybernika

Rhiannon was dead but it didn't last. Her husband has downloaded her mind into a computer-generated world where he is Lord and Master and she has no rights.
For him, it's Heaven. For her, it's Hell.
Danny Jasinski is a freelance computing genius on a mission to hack the unhackable, while battling bizarre hallucinations and paranoid conspiracy theories.
What’s real and what isn’t? And who's really in control?
Sybernika is an unsettling, thought-provoking and hugely entertaining sci-fi novel.