single existence. one option One giving up. Simi gave up everything, including her freedom, her existence as a mami wata, and the boy she loves, in order to save those closest to her. She now serves a different deity who keeps watch over the underwater Land of the Dead. But change is in the air, and when Simi learns that demonic forces have made their way into the human realm and are out to wreak havoc, she is forced to violate her vow and go back to the world above the ocean. She has control over how the world will turn out.