"Murder Is Corny" is a Nero Wolfe mystery novella by Rex Stout, first published in April 1964 in the short-story collection Trio for Blunt Instruments (Viking Press).
Archie Goodwin, who answered the door, tells Cramer he has met Faber briefly only, since he has been delivering Duncan's corn for the past 5 weeks, which Wolfe (and Rusterman's) order according to exacting standards.
Eventually it develops that Susan McLeod found Faber's dead body, skull smashed in at the loading bay of Rusterman's, in the time in question, and has given a statement saying she had arranged to meet Archie there.
Faber, who exhibits the traits of a stalker, has apparently been spreading stories about his making Miss McLeod pregnant in order to force her to marry him to keep her reputation intact.
Other members of the cast (in credits order) include Colin Fox (Fritz Brenner), Bill Smitrovich (Inspector Cramer), R. D. Reid (Sergeant Purley Stebbins), David Calderisi (Carl Heydt), George Plimpton (Nathaniel Parker), Robert Bockstael (Max Marow), Bruce McFee (Duncan McLeod), Julian Richings (Peter Jay) and Kari Matchett (Susan McLeod).
The series of black-and-white telemovies stars Tino Buazzelli (Nero Wolfe), Paolo Ferrari (Archie Goodwin), Pupo De Luca (Fritz Brenner), Renzo Palmer (Inspector Cramer), Roberto Pistone (Saul Panzer), Mario Righetti (Orrie Cather) and Gianfranco Varetto (Fred Durkin).