I suspect that this is a hoax in bad taste, but either way it’s effectively done. It’s a fascinating and deeply creepy read:
My son Peter has always loved to play hide and seek. In fact, he loves it so much that he will wake me up in the middle of the night to play. The only problem is that Peter has been dead for eight years. This website documents the hell I’ve lived and continue to live every night.
There’s even a nifty bit of video.