I will never get bored watching American TV movies from the seventies. Plus, this one is directed by Jack Smight, the maker of HARPER. It is inspired from actual events. It is shocking, creepy, even today, in 2023, so imagine in 1972. And in the mean time, we have seen so many stories like this, for big and Tv industry - OXYGEN (1999) for instance among many others: a kidnapper "hides" his or her victim underground before asking for ransom. It is tense, gritty, riveting, excellent, and David Janssen - in the seventies he was at his very best, the over the top of actors for the TV industry - is leading the whole show. I highly recommend it.