New York City newspaper writer J.J. Hunsecker holds considerable sway over public opinion with his Broadway column, but one thing that he can't control is his younger sister, Susan, who is in a relationship with aspiring jazz guitarist Steve Dallas. Hunsecker strongly disapproves of the romance and recruits publicist Sidney Falco to find a way to split the couple, no matter how ruthless the method.
Johnny Rutledge is a drifter who comes to and discovers a cabin in the forest where five kids: January, February, March, April, and May are living without parents. Their parents died a while ago, and they want to keep that secret from the townspeople, especially the young school teacher, Prudence Millett, to avoid being sent to a children's home and eventual separation. Johnny moves in with the kids and poses as their uncle to take care of them while romancing Prudence. But in order to keep the children, he has to get married.