Deep Scratch (1995)

Christabel Caine has the face of angel and the heart of a swamp rat. She'll step on anyone to get what she wants, including her own family. A master of manipulation, she covertly breaks off the engagement of her trusting cousin, Donna, to her fabulously wealthy beau, Curtis Carey. Once married to Curtis herself, Christabel continues her affair with novelist Nick Bradley, who knows she's evil, but loves her anyway.

A wealthy couple's marriage is falling apart due to the man's infidelity. The wife's male friend has long loved her and sees his big opportunity.

Lil works for the Legendre Company and causes Bill to divorce Irene and marry her. She has an affair with businessman Gaerste and uses him to force society to pay attention to her.