Examining what caused three women to murder innocent people.

Southern belle Louise Peete shot and killed multiple partners – leaving a trail of blood and bodies behind her before the state took her life in the gas chamber. Instead of divorce, horse owner Jane Dorotik chose to murder her husband so she wouldn't have to share the money she planned on spending on her own ranch. Teresa Lewis and two secret lovers shot her husband and his son for life insurance, but they didn't plan it well and the men didn't die until after the cops showed up.

Rachel Wade and Sarah Luderman engage in an online battle for the affections of a boy and the battle enters the real world. When Sarah takes one risk too many by confronting Rachel at a house after humiliating her online, Rachel is armed with a knife and uses it to effectively kill Sarah. Caroline Young was so upset at the thought of losing her grandson to his biological father, she stabs both her grand-kids (ages 6 and 4) and also stabs herself (but survives) and all of this is while her daughter and the kids' mother is watching. Elizabeth Duncan had only one man who always stuck by her - her son Frank. So when Frank marries his pregnant girlfriend (who helped nurse Elizabeth back to health after attempting suicide) in a private ceremony, Elizabeth taunts them with phone calls and hires two amateur criminals to kidnap and kill Frank's pregnant wife and their unborn child.

When these women meet their mate they gain a partner in crime and life.

A mom locks up her daughter like she's a prisoner-of-war; a helpful neighbor quietly kills her community; lesbian lovers bash and burn a complete stranger.

A businesswoman targets a lottery winner; a young bride sends her husband overboard.

Some women are just cold-hearted and attack "Without Pity". A mother who wants another baby is prepared to steal from the womb; a grandmother's outward devotion masks his sadistic nature; and an unhappy divorcee takes revenge on her own flesh and blood.

Teens who are willing to kill to get what they want, including one who makes herself an orphan and another who murders her grandmother to be with a boy.

An Englishwoman fights with her boyfriend; game players lure a man into a deadly trap.

A mother in Missouri uses her children for money; a Texas mom becomes delusional; an Australian mother drowns her son.

A prostitute kills her second, third and fifth husbands; a woman murders her husband and makes it look like a suicide; a woman poisons her husband with antifreeze to collect his life insurance policy.

No description available

Ladies that believe social status gives them a license to kill; they assume they are entitled to do it.

No description available

For some women evil lurks from the beginning and there is no stopping it.

No description available

A teacher seeking financial gain; a daughter plotting murder; a lonely heart and damaged mind. These women truly believe romance is dead.

Women willing to sacrifice the innocent. Betrayal; jealousy; coping with children.

Sometimes, a woman has a killer instinct when she meets her other half. These wicked women exert control over their partners to become the master puppeteer of a murderous plot. Acting as two on behalf of one, these Deadly Women are 'Double Trouble'.

Women that convince their closest relatives to become party to murder.

A mother sacrifices her son; a teen rebels; a bookkeeper steals her way to murder.

A scorned lover weaves a web of lies; a Goth teenager orders a reign of terror; a gold-digger buries secrets.

A California woman commits a deadly sin rather than live with an immoral husband; a housewife drives two women to join a murderous poison ring.

A Texan goes to any length to keep her man; a mother does the unthinkable to her tiny son.

The Season 8 opener features examines the infamous 1892 ax murders of Lizzie Borden's parents.