A famous author is well known in this small town for writing horror books. What they don't know is that they are based of true stories. This author has a house on this lake where beneath the surface is his secret garden of the innocent victims that he kidnapped, dressed up and drowned. Until one night while a team of scuba divers where exploring the dark water, the author throws one of his victims over board, still alive. The scuba divers rescue her. Later on the work together to capture this cruel man.

Cabin by the Lake (http://www.imdb.com/title/tt0199389/)