Between what two worlds is one of the main characters torn between

I think you are referring to Willie Bodega. Bodega Dreamstells the story of a young man named Chino who lives in Spanish Harlem. One day he crosses paths with Willie Bodega, who is part man, part legend. He is also a gangster, a community activist and a man with dreams that know no limits. Chino is intoxicated by him and is drawn gradually into his world, becoming embroiled in the underbelly of Spanish Harlem which gives him pause to think about both his own future and the future of his neighborhood.