Insomvita. Psychological thriller with elements of a crime story

This book tells a story of Robert Blanche, a lawyer with a life split in two — his own and the world of his dreams. Every night he sees the same dream — another life in another world. There, he is Trevor, a war correspondent.
One day, Trevor visits a psychologist, who puts him under hypnosis. Suddenly his life is turned upside-down and both he and Robert are put through the ringer as they try to find their way back to ‘normal’.
Inspired by true events.