This film tells the story of two very different but equally confused young musicians. One is Shanni, a harmony singer who has worked hard for many years but has no career prospects and has suffered repeated blows in life. The other is Dong Dong, a former rock musician who is seriously ill and waiting for death under an assumed name. The two who are desperate for life meet when they are about to commit suicide... The suicide plan fails, and their lives are changed by each other's appearance. A story of another time and space unfolds from a diary from the 1970s that Shanni accidentally discovered. A sad love story that has no follow-up is settled with Shanni's efforts. All kinds of things related to music, love and life make the encounter between Shanni and Dong Dong even more magical. Among the myriad threads, can every kind of love blossom and bear fruit? Can they find a reason to continue to love this world?