The wife who has left the family suddenly comes back into Mr. Chen’s life, asking for a divorce and custody of their daughter. Refusing to choose sides, the daughter decides to live with the parent who can get her a piano. Chen tries to borrow money, and even attempts to steal a piano from a school music room, but all efforts fail. Without any other means, Chen decides to make the piano from scratch. He persuades a group of unaccomplished - but loyal - friends to help him cobble together a piano in a derelict factory from a little scrap steel and a lot of ingenuity. After overcoming many hurdles, Chen’s piano project takes shape while his wife fights vigorously with the courts for custody of their daughter. Unexpectedly, Chen ends the project and let his girl go to her mom so she can get a better life. But his troupe of factory misfits decides to forge ahead with the project. Though crude in design and tune, the factory piano is finally finished - awaiting its first and final performance.