Thirty years have passed since Greta Marchmont left the mansion in which she had once found a home. Now she returns to Marchmont Hall in the snowy mountains of Wales - but she has no memory of her past because, since a tragic accident, she suffers from amnesia. But a walk through the wintry landscape leads to a disturbing discovery: she comes across a grave in the forest, and the weathered inscription on the cross tells her that a little boy is buried here - her own son. Greta begins to make the