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

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.

Wives who murdered their husbands are profiled.

These women love to gamble; but when the money's all gone, the stakes turn deadly. A transgender woman is willing to kill for a new body; a mother and daughter trade a family member for cash; and a wife tries to bury her debts along with her husband.

These mothers teach their sons to hate and kill.

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.

When these deadly women are loved they shine, but push them too far and they turn dangerous.

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

For these heartless women envy is the deadliest sin. An obsessed mistress sacrifices her lover's wife; a young lover kills her girlfriend to keep her from the arms of another; and an angry cowgirl destroys her ex's life by destroying his family.

A secret addiction drives a young woman to sacrifice her wheelchair bound employer; a scheming caregiver betrays the man who trusts her; and a single mother’s desire for a better life leads to a brutal dismemberment.

After learning her first husband had an illegitimate child, Raynella Dossett Leath begins to control every aspect of her new husband life, including his death when she's overcome by greed. Soon afterwards, another shocking secret is revealed. Margaret Rudin was sick of her husband wasting all of his money on alcohol and guns (money that she wants to spend) that she kills him and dismembers him before going on the run. Linda Lou Charbonneau got sick of her first husband and married his nephew; when neither man's financial status met Linda's satisfaction, her solution was to kill both of them.

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

Women who are after their mothers' cash are featured.

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Battered housewife Amber Cummings shot her white supremacist, child-pornography loving, Nazi obsessed husband to save her daughter from being sexually assaulted. Consumed with greed, alcoholic con-artist Kate Webster murders her employer, spins a web of lies to cover up her crime and disposes of the body in the most gruesome way possible. Sick of having to constantly care for her needy, terminally-ill husband, who had only weeks to live, Wendi Andriano got impatient waiting for him to die and sped things up by killing him herself.

A mother's love turns bad when she betrays the innocence of her children.

Every murder is a tragedy but some are plain barbaric.

Some women are so cold and brutal they don't need an excuse to murder.

These women discover that for them death has benefits.

Sarah Mitchell lives rent-free in the house of her hard-working, well-to-do older sister Stevie. When Stevie cuts her off after learning Sarah had been stealing money and writing checks in her name, Sarah's plans go from devious to diabolic by killing, dismembering and re-emerging from a fire as her sister. Two twins, wholesome school-teacher Peggy Lowe and flashy, audacious nurse Betty Wilson find themselves caught in a web of deception and mystery after a man they both met murders Betty's ailing husband (a well loved eye-doctor whom Betty married for money) and claims they both made him do it. The truth is one that shakes Huntsville, Alabama to it's core. Kathleen Worrall suffers from a hormonal disease, but the medicine causes weight gain, so she stops taking it. As a result, the tiniest things set her off and one mistake leads to her stabbing her younger sister Susan.

Women exact their vengeance when the kill in cold blood.

Victims dealing with the ''death knock'' from deadly women.

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

Some women like others to do their dirty work. A drama queen brings her love triangle to a permanent end; an intimate betrayal turns friends into deadly foes; and a loose woman will do anything to protect her freedom.

They may be the fairer sex but when they clash it can be downright brutal. An abusive mother takes drastic steps to keep custody of her child; a small town gossip sparks a murderous grudge match; and a teen bully makes a shocking move.