An illicit affair between a religious bodyguard and his wife's friend has a fatal outcome.

A married woman becomes involved in a dangerous affair with a millionaire.

A woman is killed by her ex-boyfriend.

A three-way relationship in Iowa turns deadly.

A college student's lover is murdered, and suspicion falls on both him and his roommate, a minister at a local church.

Chronicling a love triangle between two women and a male drug dealer.

A woman's affair with a successful businessman is plagued by obsession, jealousy and violence.

A love triangle involving a pool-hall owner, his wife and a cocktail waitress unfolds.

Extramarital affairs have deadly consequences for a couple.

The second season opens with a workplace love triangle that ends in murder.

A married woman's boyfriend threatens to break up with her and begin dating her former girlfriend.

A young Navy wife faces temptation after her husband leaves for an overseas mission.

A married woman has an affair with a much younger man.

A deadly love triangle unfolds when a married woman has an affair with a coworker.

A police officer cheats on his college sweetheart with a coworker, but he finds himself in over his head when she gets pregnant.

A married man receives frightening e-mails from his mistress, and the love triangle ends in murder.

A dentist's wife is found dead.

Examining the case of Drew Peterson, a four-times-married policeman who was convicted of the 2004 murder of his third wife, Kathleen Savio.

A rabbi's wife is murdered.

A dog trainer stalks his ex-wife.