CHEN Wei and her daughter seek refuge from CHEN Wei’s violent husband in the Butterfly Mansion, known for its eerie reputation as a suicide hotspot. Strange events unfold, and warnings from Uncle LIANG, the building’s janitor, and Uncle Shan, the temple caretaker who lives on the top floor, about the unsafe floor are ignored due to financial constraints. Neighbors like Ah Di, who sees spirits, and the forbidden Room No. 613, intensify CHEN’s unease. Substitute manager Xiao Liang cares for CHEN, with her daughter showing joy in his visits. As the Chinese ghost month progresses, supernatural events escalate, revealing a crisis beyond CHEN Wei’s initial struggles.
為躲避家暴的丈夫,陳薇帶女兒住進有自殺勝地之稱的蝴蝶大廈。管理員梁伯和頂樓的廟公山叔不斷提醒她這一層樓不太乾淨,勸她盡快搬走,但經濟拮据的她暫時只能棲身於此。正值鬼門開時,蝴蝶大廈內意外頻傳,甚至發生許多靈異事件,而老住戶們似乎已習以為常。陳薇本想帶女兒逃離丈夫,不料卻將自己捲入更大的危機之中。