There is a filthy dimension beyond that which is known to man. It is a dimension of fornication, kinkiness and debauchery. It is the middle ground between deviance and conformity, between taboos and inhibitions and it lies between the man’s fantasies and the summit of his phallus. This is the dimension of erotic imagination. It is an area which we call the twilight bone...When Chris tries that new virtual reality program called 'Sensuous Ava'...he doesn't know what he's about to experience....