The beautiful but neglected wife of a brilliant architect from Milan, betrayed by her husband and mocked by her friend who manages the amorous adventures that she dreams of having, decides to take vengeance of the two, seducing her friend's husband and her young son.

A race-car driver who's down on her luck is invited by her ex-husband's wife to stay at their plush villa. The two women form a bond, and it's not long before their mutual dislike for the husband culminates into a plan to kill him. As it turns out, though, they're not alone in plotting murder.

Set in 1865 in southwest Missouri, at the close of the Civil War the film follows the adventures of two Confederate men and a black man who they rescue from a lynching.