Zhang Zixin, the heiress of the Zhang Corporation, awakens in a mansion and begins to run frantically, desperate to escape and return home to Liu Wen. Yet no matter which direction she dashes, she cannot stray far from this enigmatic abode. Zhao Yan, the illegitimate son of the Zhao Corporation, and his friend Xiao Bai, carrying a cake, encounter Zhang Zixin sitting huddled on the ground. Zhang Zixin has forgotten why she is here, only remembering that everyone gathered in this mansion to celebrate her birthday. Thus, they all re-enter the mansion, where Liu Wen, whom she longs to see, awaits her inside. As Zhang Zixin blows out the candles, bizarre incidents unfold one after another. This mansion is a place of no return; to escape, one must uncover hidden secrets.