The college fraternity that he coerced David into joining (his old alma mater) is bullying him on a regular basis and forcing him to write their test finals for them.

Deciding to set things right, Jack in David's body decides to take charge by convincing his father (or rather, Jack's son) to implement his ideas on the family business and uses his poker playing skills to beat the frat boys while betting $1000 that he will beat the lead frat boy Russ in the upcoming track meet.

Jack also impresses a girl named Robin, who is taken with David's old-fashioned style with bow ties and his vividly recounting the Second World War and meeting President Harry S. Truman.

Finally, Jack confronts Madeline by saying he knows that she made a pass at David and is well aware that she is a gold digger only interested in his bank account.

He throws her out of the house and lets her know that he has rewritten his will to include his family and his faithful butler Horton, whom he promptly orders to have Madeline thrown out.

"[2] Janet Maslin was critical of the film for leaving George Burns in a coma when he is who the audience came to see, and says that it "isn't successfully aimed at anyone in particular".