Step Down To Terror (1958) | FILM NOIR/CRIME | FULL MOVIE

Pursued by detectives, Johnny Walters leaves the city to visit his family in a small California town. Among the household: his dead brother's luscious widow Helen, who soon is attracted to him. Ominous events and conflicting evidence leave Helen suspicious, but uncertain about her brother-in-law as tension builds.

IMDb: https://www.imdb.com/title/tt0052245