Impact is a 1949 black and white thriller filmed in California that follows the story of Walter Williams (played by Brian Donlevy).
His wife, Irene Williams (Helen Walker) and her lover attempt to kill him but it backfires and the lover dies.
Stunned by what he’s discovered, Walter Williams starts a new life in Idaho with Marsha Peters (Ella Raines) but then returns to San Francisco, where he is wrongly accused of the death of his wife’s lover.
It all comes good in the end though, his wife is arrested and he ends up with Marsha.
A very enjoyable movie.
Movie pages here.