Elwood P. Dowd is an affable man who claims to have an unseen (and presumably imaginary) friend Harvey Ð whom Elwood describes as a six-foot, one-and-one-half-inch tall pooka resembling an anthropomorphic rabbit. Elwood introduces Harvey to everyone he meets. His social-climbing sister, Veta, increasingly finds his eccentric behavior embarrassing. She decides to have him committed to a sanitarium. When they arrive at the sanitarium, a comedy of errors ensues…

Harvey is a 1944 play by the American playwright Mary Chase who received the Pulitzer Prize for Drama for the work in 1945. It has been adapted for film and television several times, most notably in a 1950 film starring James Stewart.