It is a sentimental endearing tale on the reconnection between a father and his estranged sick son through music. It has the most amazing soundtrack (of course) and the chemistry between J.K. Simmons and Lou Taylor Pucci make this less manipulative and consequently, more honest.
While the film drags a little during the first act, the rest of the film pays off fantastically well. With great acting from J.K. Simmons and some great music this is a film that should not be missed. The plot seems like something that would be on the Hallmark channel but the acting, pacing, and music elevate this to a level that Hallmark will never achieve.