Real estate agent Chen Jinan is struggling to sell the old house left by his grandfather. After an accidental electric shock, he discovers that his mobile phone can broadcast live broadcasts to the past - the first viewer is actually his young grandfather who said a painful farewell to his first love in 1979 for a place to return to the city. He originally wanted to use this magical ability to facilitate a deal, but while his grandfather was watching the live broadcast day after day, he got a glimpse of the mystery of his mother's life experience that he kept secret. When the current pressure to sell a house collided with the infatuated waiting of the past, Chen Jinan had to make a choice between KPIs and the truth about his family. In the end, he used a special live broadcast spanning forty years to uncover the dusty past of educated youth and mend the broken emotional memories of the two generations.
