Bag of Bones

The story is about a 40ish writer who loses his wife and goes to their summer house to stay for a while. He meets a young woman and her child and gets involved in her fight to keep her child from her husband's father who is very rich. Along the way he deals with some ghosts but he is not sure who they are. Is it his wife, Sara or some other entity? I had a hard time stopping listening to this. It is read by Stephen King and he does a great job with it. Some authors cannot read their own work and do it justice but he can.