After accidentally killing a girl, teenager Ronald Wilby (Scott Jacoby) is hidden away from cops in a secret room in the house by his domineering mother (Kim Hunter). Poor Ronald is left all alone when she passes away. Sad Ronald finds the situation gets better and worse when Mr. Wood (Dabney Coleman) moves into the house with his wife and three daughters. Bad Ronald, whose mindset is becoming increasingly delusional, becomes fixated on the youngest daughter (Cindy Fisher) and begins to imagine she is the princess for the imaginary kingdom in his head. Highly effective TV-movie from director Buzz Kulik that is based on the novel by John Holbrook Vance. You do actually feel sorry for the boy and Jacoby gives a great performance, especially for a teen. The end is very rushed, but it is after all a TV movie. Expanded and it could be a top-notch thriller that still would work today. When I see something like this I wonder why Hollywood never tackles this kind of material for a remake (the French did a version in the early 1990s).