share time: 2026-02-28 00:32:39
On the edge of the city lies "Fuxing Li", an old apartment building where late-night knocks echo with no response. Lin Xiaoman, an overworked office worker, moves in to find her missing best friend; Chen Mo, a quiet programmer, arrives to investigate his brother’s mysterious death; and Aunt Zhou, a superstitious woman, clings to an empty room. When the knocks lead to a decade-old fire tragedy, the tenants shift from suspicion to teamwork: a friend’s hairband, a brother’s work ID, Aunt Zhou’s old photos—all tie to lives buried by the apartment’s owner. The mysterious "knocker"? A survivor of the fire, determined to unearth not just the hidden evil, but the "unfinished business" each tenant hides in their heart...
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