Margaret headed to an island to celebrate her birthday, only to encounter a colossal sea monster. Her best friend and boyfriend, desperate to save themselves, deliberately pushed her into the ocean. The monster savaged her, and she died filled with bitter resentment. Reborn, she finds herself back on the yacht just before they set off for the island. Without hesitation, she breaks up with her worthless boyfriend and refuses to step foot on the island. This time, she swears to change her doomed fate.
