Trading Reality — Michael Ridpath

Mark Fairfax is a young, gifted London bond trader with a high-paying job, a stellar track record and a beautiful girlfriend. His older brother, Richard, owns FairSystems, a small company poised to do for the virtual reality world what Bill Gates did for personal computers. But one dark night Richard is brutally murdered in his workshop.

Mark immediately steps into Richard's shoes -- and his life. Through cunning and luck, Mark struggles to keep his brother's business afloat and to discover the secrets behind his death. Until Mark himself becomes the target, moving ever closer to his brother's fate.