Knock Knock (play)

In Feiffer's signature style, he created the artwork for the poster and program, which shows figures peering out from behind a door to answer the knock.

In a cabin in the woods, two bickering old Jewish recluses, Abe and Cohn, have retired, and haven't moved in two decades.

[4][5][6] With its success the show moved, production intact, to Broadway where it opened on February 24, 1976 at the Biltmore Theatre.

The cast included Neil Flanagan (Abe), Daniel Seltzer (Cohn), Judd Hirsch (Wiseman), and Nancy Snyder (St. Joan).

Sets were designed by John Lee Beatty, costumes by Jennifer von Mayrhauser and lights by Dennis Parichy.

Rigby brought in a new director, José Quintero, who was better known for serious drama, and some of the roles were recast with Charles Durning (Cohn), John Heffernan (Abe), Leonard Frey (Wiseman) and Lynn Redgrave (St.