Brianne Tju

Upon arriving at a remote cabin in the redwoods, Kath and her boyfriend find a mysterious younger couple already there — the rental has apparently been double-booked. They decide to share the cabin with these strangers until the next morning, but her boyfriend disappears with the young woman, which sends Kath in a spiral to find an explanation for their sudden breakup — but the truth is far stranger than she could have imagined.

Four teenage girls go on a diving adventure to explore a submerged Mayan city. Once inside, their rush of excitement turns into a jolt of terror as they discover the sunken ruins are a hunting ground for deadly great white sharks. With their air supply steadily dwindling, the friends must navigate the underwater labyrinth of claustrophobic caves and eerie tunnels in search of a way out of their watery hell.