In 1998, a flash flood destroyed a small village in the south. Except for a few children in the highlands, none of the adults in the village survived. After the disaster, these sad children were adopted by well-wishers and dispersed to different cities. Eighteen years later, those children grew up and lived their own wonderful or ordinary lives. If it weren't for a serial murder case, everyone would no longer be able to recognize each other.
A woman who wants to marry an ordinary man and live a stable and happy life; a man who is constantly trembling and trying to suppress the fear in his heart; a shining star in the entertainment industry who is entangled in nightmares; a pampered innocent girl... The whirlpool of fate entangles several people together, struggling and spinning, until they fall into the abyss of hell...