The Invisible Ray (1920) is a Science Fiction film that follows a scientist discovers a death ray and locks it in a box, giving the key to his daughter, who soon finds herself hunted by criminals looking to steal the deadly mineral. The Invisible Ray is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.0 out of 10 from 2 votes. Fans of science fiction movies may also want to explore similar titles below.