In 1946, when seven-year-old David Cox (John C. Riley John C. Reilly) accidentally cut his brother Nate in two while playing, his father was so sad that his son, who was proficient in piano dreams, had a bitter grudge against David. David gave full play to his musical talent with Nate's instructions before his death. A 14-year-old performance got David involved in the center of public opinion in the town. He couldn't stand the cramped environment around him and rushed to his musical dream with his 12-year-old girlfriend. David, who lives in the ballroom, was accidentally given the opportunity to perform instead and was lucky to release a hit single, "difficult Walk," funded by a Jewish businessman. since then, David has taken drugs, created more masterpieces, and committed the mistake of bigamy by impulsively marrying female singer Darling Madison (Jenna Fisher Jenna Fischer). David, 21, went through prison and rehabilitation and meditated with the Beatles in India during the anti-war trend of the 1960s. The legend about him is far from over.