Guilty Conscience(1985)

Amid acrimonious divorce proceedings, Louise (Blythe Danner) unwittingly puts her life in danger when she contests the prenuptial agreement she signed before marrying attorney Arthur Jamison (Anthony Hopkins). He plans to kill her to resolve the situation. Armed with information on how her cheating husband conducts his business and personal affairs, she demands more money from him -- but will Arthur have the final word?