Cuando el alba llegue (1950)

A street-wise, trendy nightclub owner who did whatever he had to in order to succeed, is now determined to keep his younger brother out of the gutter. The plan is to keep his sibling on the straight and narrow path by having him become an educated professional, who,( unlike himself), remains unsullied by a life in the streets. While working towards this laudable goal, he inadvertently falls for a beautiful girl who is actually his little brother's fiancee. Things only get worse from then on.