A woman from a wealthy family, after experiencing a major change in her life, thought she had found a soulmate whom she could trust and spend the rest of her life with. However, unexpectedly, her husband finally chose to betray her. Since then, with the reappearance of her ex-boyfriend, her life has been shrouded in a mysterious black figure, a stranger who follows her everywhere. Although he had never taken any substantive action, his existence once again plunged her life into boundless fear and insecurity.