I Bury The Living (1958)

Starring Richard Boone, Theodore Bikel, Peggy Maurer, Howard Smith, Herbert Anderson
Directed by Albert Band
(actor & director credits courtesy IMDB.com)

A department store executive is charged with overseeing the town's cemetery, and becomes shocked to discover black pins he inserts into the cemetery's map seem to make people die. 

This is a compelling film assembled on a modest budget, and benefits from Louis Garfinkle's fascinating screenplay, Gerald Fried's dark music score, and memorable visual imagery from Edward Vorkapich.   There's no big stars other than Richard Boone, who had just started starring in TV's Have Gun Will Travel, and he's more than believable as the man who comes to believe a supernatural power within himself is causing the deaths, despite all those trying to convince him otherwise.  The first time I saw this film I was kept guessing until near the climax, and even knowing how it turns out now, subsequent viewings have revealed how well the picture is assembled and directed, and it stands up today for those reasons.