The Legend of Red Lake (2021)

A family is on the brink of disaster after their little girl passes away from a terminal illness. In the depths of their despair, they find Jesus who calls them to a remote lake where they can use their knowledge of science to study a rare type of algae that grows there. This algae shows promise to be the key to a cure for the illness that took their baby girl. When they arrive, they learn that horrible things have happened at Red Lake and the locals all fear it. What follows next will keep you up at night.