Country doctor Jack Jackson is called in to treat the Sick-Little-Well-Girl, who has been making Dr. Saulsbourg and his sanitarium very rich after years of unsuccessful treatment.
Dr. Jack is a 1922 American silent comedy film starring Harold Lloyd. It was produced by Hal Roach and directed by Fred Newmeyer. The story was by Jean Havez, Hal Roach, and Sam Taylor. The film was released on November 26, 1922. Grossing $1,275,423, Dr. Jack was one of the top-ten most profitable releases of 1922.