When shy Larry Hubbard (Steve Martin) finds his girlfriend in bed with another man he is forced to begin a new life as single. But since he can't bear being on his own he tries to court Iris (Judith Ivey ) who is not however interested in him. Larry begins writing a book on his experience as a single which unexpectedly becomes a best seller. He becomes rich and famous and even his relationship with Iris can begin on a new basis.

72nd Street Subway Station, 72nd and Broadway, Manhattan.

Sheep Meadow, Central Park (btw 66th and 69th Streets) Manhattan.

Bandshell, Central Park (from 66th to 72nd Streets) Manhattan.

Manhattan Bridge, East River, Manhattan.

724 5th Avenue and West 57th Street, Manhattan.

Queensboro Bridge, East 59th Street (btw Manhattan and Queens) New York.

West 76th Street and Columbus Avenue, Manhattan.