This movie was based on a true story. Back in the 1950's a man named John List murdered his wife and kids and married into another family with no father and he was eventually caught. This movie is on a similar basis. This has to one of the best films of the 1980's. Terry O'Quinn is absolutely brilliant as the psychotic stepfather, in other movies you wouldn't think of him as a psychopath like that. Shelley Hack was a bad choice for the wife, the role was unfit for her, in my opinion they should of gotten somebody more dramatic (you choose who), and Jill Schoelen was superb as the daughter, possibly her best film, she played the role as if she lived it before. Charles Lanyer as the psychiatrist was an absolute bore, he should have played the reporter. Stephen Shellen was good as the vengeful brother in law and finally Blu Mankuma as the cop (so what else is knew) seemed like he didn't care about the case. If you want to see a great thriller based on an actual story watch this. I give this 10 out of 10
