Ruby FallsRuby Falls

In 1928 Chattanooga, the discovery of a breathtaking underground waterfall-soon named Ruby Falls-draws crowds even as the Great Depression threatens the attraction's future. Hoping for a publicity boost, a famous mind reader agrees to descend into the caverns with a small group to perform a daring psychic stunt. Young cave enthusiast Ada secretly follows at a distance with another guide, acting as a safety net in case something goes wrong. But when one member of the party is found dead, Ada realizes there's a killer in their midst. Trapped deep underground with fading light and rising fear, she must lead the group back to the surface-before the murderer strikes again.