Watch What Lies Below (2020) HD Full Movie Free on solarmovie.do. Watch What Lies Below (2020) online free. A 16-year-old girl returns home from camp and learns that her mother has a new boyfriend, one she in...A 16-year-old girl returns home from camp and learns that her mother has a new boyfriend, one she intends to marry. A man whose charm, intelligence and beauty make him look like he's not human at all.