The Ex (1997)

Everybody loves a kooky broad until she starts stalking and killing. The Ex (1997) focuses on the sexy nutcase Yancy Butler who is morbidly obsessed with her ex-husband, Nick Mancuso. Yancy tries to make his current wife, blonde beauty Suzy Amis, a bit kookoo herself. Yancy makes sure Suzy catches her husband entangled in Yancy's naked body. The mind games may be hot, but fly too close to this stunning brunette and you'll get burned. Case in point, an earlier nude scene when Yancy is riding some lucky fellow in the tub, but before the guy can come she drowns him. She wouldn't even let the schmuck have a happy ending before closing the book on him. Still The Ex is ex-cellent!