1970年代传奇摇滚乐手丹尼柯林斯（阿尔·帕西诺 Al Pacino 饰）在经历人生低潮时，经纪人（克里斯托弗·普卢默 Christopher Plummer 饰）发现了一封40年来从未送达的信，这封信居然来自披头士主唱约翰·列侬，在40年前写给当时19岁的他，这让他再度受到启发，毅然决然地离开现在奢华的生活，踏上寻找生命意义的旅程，而他也在这段旅程中收获了真爱和消失已久的创作灵感……
Famed rock and roll guitarist Johnny Thunders arrives in New Orleans to get his life together after a toll of hardships, but instead falls into a dark journey and trail of events that are based on his real life unexplained mysterious death.
