The Alfred Hitchcock Hour "Final Vow" (1962)

Season 1 episode 6 of the series, directed by Norman Lloyd, with Carol Lynley, Clu Gulager, R.G. Armstrong, Don Hanmer, Carmen Phillips, Isobel Elsom, Charity Grace, Nora Marlowe, Sam Gilman, John Zaremba et al ( www.imdb.com/title/tt0394043/). Host Alfred Hitchcock. Original air date 25 October 1962.