In 2010, folklorist Qiu Yingying returns to her hometown, Huishui Town, to research the local legend of the "yin wedding" for her graduation thesis, an ancient ritual in which a ghost marriage is held for the dead. The elderly townspeople are tight-lipped, offering only one warning: "The living mustn't ask about a ghost's wedding. When the red sedan chair is carried past, don't look back."
While gathering information, Qiu Yingying reunites with her childhood friend, Zhang Ruixie. He is now a police officer at the local station: rational and practical, he scoffs at superstitious tales. But when several recent, bizarre disappearances become entangled with the rumors of yin weddings, he is forced to investigate alongside Qiu Yingying.
Their investigation reveals that every clue points to an abandoned late-Qing mansion known as the Wedding House. Whenever the suona sounds at midnight, a wedding procession carrying a red sedan chair appears inside. Beneath the bride's veil sits a paper effigy with a face identical to Qiu Yingying's... More suffocating still, Qiu Yingying starts seeing a blurry figure of Zhang Ruixie in her old photographs, dressed in Republican-era robes and standing in front of the Wedding House.
"This time, did you come to find me, or to marry me?"
In the night wind, Zhang Ruixie's voice suddenly sounds strange and chilling.
Qiu Yingying must break the cycle of resentment that has haunted the Wedding House for a hundred years. But at the heart of the truth, she discovers that her and Zhang Ruixie's fates were already written into an unfinished yin wedding. Their only way to survive may be for her to put a bridal gown on "him" with her own hands...
Theme: Childhood friends
