Every year, when the O'Connors leave their lavish New York home to spend Christmas in Florida, hobo Aloysius T. McKeever (Victor Moore) takes up residence in the house in their absence. But this year, daughter Trudy (Gale Storm) shows up unexpectedly. Posing as a runaway, she keeps her identity a secret, as does her father (Charles Ruggles) when he arrives home. The confusion that follows ensures the O'Connors will never forget this Christmas.