Religious Studies assistant FANG Yi-hsin, whose neighboring older sister died young and became a “Gu Niang” in the maiden temple, has faced the pressure of becoming a restless spirit if she dies unmarried. She was disowned by her father and dismissed by the school when her scandalous affair with the professor was exposed. As female drowning cases kept emerging in Longgang, Yi-hsin was asked to assist in the investigations. She discovered that all victims had visited the maiden temple and wore red threads on their wrists. Soon, she learned that the temple’s ghosts all perished in a ferry accident 50 years ago, and the victims were killed by the “Gu Niang.” Initially thinking that the temple’s secret was solved, she was kidnapped by the actual perpetrator of the ferry incident. Will she face the fate of being another victim?