Tonton Streaming Matlock (1986) S1E14 - The Author

Mary Ann Newton has written a book (Secret Confessions) that purports to be fiction, but upon a deeper look, it seems to be an expose on the citizens of a small town. When an attempt made on her life gets a local reverend instead, Matlock is called in to defend the suspected killer. As the case goes on, Matlock realises that Ms. Newton may not be the right target for the would-be killer.