After her fiancé Lu Yanshen died in a car accident, Yan Wanqing suffered from a special kind of "pareidolia" - she always saw herself wearing the wedding dress she couldn't put on. In order to capture this love that has nowhere to go, she opened a bridal shop in the old alley where the two had agreed, specifically to serve those "weddings that cannot be held."
In the past 12 years, she has witnessed more than 300 "unwitnessed weddings": the boy who took the wedding photos of the Republic of China for his grandparents, the grandmother who put a veil on her sacrificed lover, the family of the sister with leukemia who used the urn as the "groom", the elderly person with Alzheimer's disease who made up the wedding for herself... She wrote each story in her diary, using the fragments of other people's regrets to piece together her own forever missing ceremony.
Until she discovered the secret of Lu Yanshen's last phone call before the car accident, and that parting in the rain seemed to have another hidden meaning. When the truth peels off like beads on a wedding dress, Yan Wanqing must choose: continue to wear that "invisible wedding dress" and live in memories, or remove the stitches that have been sewn for twelve years with her own hands, so that the wounds can truly be seen.
This is a long wedding with the dead, and the only one who can say "I do" is the living self.