The Last Seduction (1994)

Bridget Gregory has a lot going for her: she's beautiful, intelligent, and married to a doctor. But, as her husband Clay discovers, all of this is not enough. After persuading him to sell medicinal cocaine to some drug-dealers, she takes off with the money, almost a million dollars, and goes undercover in a mid-American small town. Because Clay must pay off a loan shark who will otherwise damage him severely, he keeps sending detectives after her, trying to retrieve the money. When Bridget meets Mike Swale, a naive local who is blinded by her beauty and directness, she devises an elaborate, almost diabolical scheme to get rid of Clay once and for all.