The Female Instinct (1972)

Director: Leonard B. Stern

A spinster and her widowed sister, both authors of murder mystery novels, try to track down the killer of a former movie star.

Cast

Helen Hayes

Ernesta Snoop

Mildred Natwick

Gwendolyn Snoop Nicholson

Charlie Callas

Charlie

Jill Clayburgh

Mary Nero

Bill Dana

Melvin Kaplan

Ed Flanders

Milo Perkins

Kurt Kasznar

Alexander Scalamdri

Edward Platt

Julius Nero

Kent Smith

Warren Packer

Craig Stevens

Charles Corman