Brilliant concept. Create an offline RPG that mimics every aspect of an online role-playing game, including the silly self-conscious chat and ham-fisted flirting. Immerse the gamer so deeply that they don't know what's real and what isn't, then start screwing with their minds with a storyline that has fictional participants in the fictional gaming universe mysteriously disappearing and falling into comas in the 'real world'. Phew.