Mermaids have always been thought of as myth. Nothing more than a story. At least that's what Melody thought. That is until suddenly she awakes to being thrown off her ship by her crew with her legs bound tightly and her lungs filling with saltwater. Her legs changing into one long tail. Fueled by her hatred of the ones who had betrayed her and left her to die she decides to get back at all 10 of her killers.