Plunge Into Darkness (1978) is a Thriller, TV Movie film that follows an ex-pro athlete runner and his wife find a strange boy in the middle of nowhere along with a murdered couple. He runs to a nearby town for help while she keeps the boy company. Meanwhile, escaped convicts are heading to their location. Plunge Into Darkness is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.5 out of 10 from 4 votes. Fans of thriller movies may also want to explore similar titles below.