Seven years ago, Jiang Song's confession was rejected by Zhou Jiming in person. Then the family watch brand changed hands and she also lost her father. Seven years later, the Yuncheng mother clock went retrograde at 23:17, forcing the two to cooperate again. She approached him with old questions and wanted to find out the truth behind the acquisition; he knew she had something to hide, but he still surrendered his trust again and again. As incomplete recordings, old watches and unsent letters appeared one after another, Jiang Song discovered that the most hurtful sentence of the year contained a secret that neither of them could afford. But can the belated truth really bring back the missed seven years?
