A washed-up, alcoholic rock singer discovers he is the father of a young opera singer in desperate need of a liver transplant. As the rocker is forced to quit drinking to be a partial organ donor, he also helps his talented—but awkward—son learn the fine art of stage performance and how to open up to music and life.

On the brink of success in the late 90s, the lead singer of a boy band quits to become a traditional father and businessman. But nearly 20 years later, an old video of the band resurfaces online and becomes a viral hit, giving the now middle-aged man and his former bandmates a second chance at being the next big thing.