From the back of the book:
What could Sean MacDonald possibly have done to deserve what was happening to him? He had been a happy man with a beautiful family, a fine job, good friends and dreams of becoming a writer. Then, bit by bit, his life had crumbled. Everything and everyone he valued began to disappear. Or was it being taken from him?
What started as a wild suspicion became a gnawing fear and finally a desperate realization. Someone - or something - was determined to break Sean, to crush his mind and spirit. A malicious, evil force was driving him to the very brink of insanity. But why him? and what could he do about it? Unless Sean could fight back somehow, his very sould would soon be ripe for the Taking.