A mentally unstable man, who has been kept in isolation for years, escapes and causes trouble for his identical twin brother.
Jimmy, the owner of a failed music shop, goes to work with his uncle, the owner of a food factory. Before he gets there, he befriends an Irish family who happens to be his uncle's worst enemy because of their love for music and in-house band who constantly practices. Soon, Jimmy finds himself trying to help the band by getting them gigs and trying to reconcile the family with his uncle.
Young undefeated boxer Terry Dolan, who's been lying to his invalid mother about his career, confides to Maisie that he hates and is terrified by boxing and wants out. Not wanting to let down his best friend and manager Skeets Maguire, who has hopes of him becoming the next champion, he is reluctant to bring up the subject with him. Maisie convinces Terry to tell Skeets, whose unexpected reaction induces him to step into the ring again.
