Watch Locked Doors for Free: How to Stream the Movie Online at 123Movies. . "Locked Doors" is about a man stuck on a broken-down spaceship waiting for rescue. He has no idea what caused the wreck. His whole crew has mysteriously vanished, the ship has been overrun by strange vegetation, and he is slowly losing his mind. The one thing that's keeping the man alive is his curiosity about what may lie behind the one and only locked door aboard the ship...