Lin Shen, who studied abroad in Bangkok, rented a top-floor apartment in a century-old sinister building in Chinatown to pay for tuition. The landlord clutched the prayer beads and warned repeatedly: Don't open the north window, don't touch the mahogany Buddhist niche, and don't answer the cries of children at midnight - this building is a Nanyang ghost altar, and touching it will incur negative debts.
He didn't take it seriously until late at night when he caught a glimpse of the bloody gold-powder Gumantong in the Buddhist shrine. Evil things happened one after another: the textbooks were covered with blood charms, the wardrobe was rustling with children's clothing, and white jasmine that did not belong to him was always placed in front of the four-sided Buddha in the restaurant where he worked; a faceless black shadow was reflected in the bathroom mirror, there were gnawing sounds under the bed, and the clothes on the balcony were stained with black mud and blood marks.
Nayi, a Laotian student studying in the same building, disappeared mysteriously. The surveillance video only captured her following the kid in red into the stairwell - and Nayi's school badge was hanging around Gumantong's neck. Only then did Lin Shen realize that there were more than just Yin children in the sinister building: the grandmother on the fourth floor fed the "invisible children", the moving voodoo dolls crawled in the corridors, and the remnant soul of the head-dropping master dragging the chain in the basement were all the wrongs committed thirty years ago.
He wanted to escape, but found that his luggage was locked and his passport had a black curse on it. It turns out that the tenants are all "contractors". If they want to survive the full moon, they must solve three taboos within seven days: uncovering the truth about Gumantong's living sacrifice, destroying the source of the voodoo doll's curse, and quelling the remaining grudges of the head master. But none of the people entangled in this building survived more than a month, and Lin Shen only had three days left.
