The Devil's Mouth

College friends Sara, Max, James, Adrienne and Greg are on a holiday in Thailand. Sara and Max are close friends but Sara often finds her opinions overruled by Max's controlling personality and struggles to stand up for herself. While the group are partying on a yacht, Sara is left behind in the water and is stung badly by a school of jellyfish. Sara forgives Max even though it was her fault the yacht left without her. That night a sea turtle washes ashore with a large bite in its lower body.