The Midnight Swim 2015    star_border 5
Spirit Lake is unusually deep. No diver has ever managed to find the bottom. When Dr. Amelia Brooks disappears during a deep-water dive, her three daughters travel home. They find themselves unable to let go and become drawn into the mysteries of the lake.

The Sirens 2009
Two sisters take their terminally ill younger sister to die peacefully at a mysterious lake.