Lyle Keen is an unique private investigator: besides his particular brand of observation and deductive skills he also possess the abilities and characteristics of the earthbound spirits, ghosts that roam the world trapped in an state of existence and non-existence, he is a Vhaes, a being that's more than a human, and more than a ghost. One day, a beautiful and charming woman appears with a job: Lyle must find a deceased millionaire's missing last will, a job that proves itself to be more mysterious and challenging than he originally thought, now he's on a frantic search and will have to make full use of his abilities in order to uncover the mysteries surrounding the bizarre death of the millionaire and the whereabouts of her last will...