|Charlize Theron||Aileen Wuornos|
|Christina Ricci||Selby Wall|
|Scott Wilson||Horton/Last ``John''|
|Pruitt Taylor Vince||Gene/Stuttering ``John''|
|Lee Tergesen||Vincent Corey|
|Annie Corley||Donna Tentler|
|Marco St. John||Eva /Undercover ``John''|
Shortly after moving to Florida, longtime prostitute Aileen Wuornos meets young and reserved Selby Wall and a romance blossoms. When a john attempts to brutalize Aileen, she kills him and resolves to give up prostitution. But supporting herself and her new girlfriend through legitimate means proves extremely difficult, and she soon falls back on old ways. More johns die, and Selby can't help but think her new friend is responsible.