The Alfred Hitchcock Hour "The Long Silence" (1963)

Season 1 episode 25 of the series, written by Charles Beaumont & William D. Gordon (based on Hilda Lawrence's story "Composition for Four Hands"). Director Robert Douglas. The cast Michael Rennie, Phyllis Thaxter, James McMullan, Natalie Trundy, Vaughn Taylor, Connie Gilchrist, Claude Stroud, Rees Vaughn. Host Alfred Hitchcock. Original air date 22 March 1963.