Murder: By Reason of Insanity 1985 on netflix

A married couple from Poland emigrates to the U.S.,. but things don’t turn out as well as they had imaged. The husband’s business fails, while his wife’s career really takes off. The husband, unable to cope with the pressures of his failed business, his failing marriage and the adjustments necessary to live in a completely different society, begins to take out his frustrations on his wife.