Raised in foster care, Kristin and Brandon only had each other; Kristin struggles to understand how her big brother became a cold-blooded killer.

Audrey agonizes about why her brother murdered their mother and sister in cold blood.

Lisa barely survives when her lover Corey attacks her, but the next woman does not.

Ashley brutally murders her own grandmother; she tears the family apart.

Elisabeth and Frank reconnect after years apart, and Elisabeth's mother, Cheri, watches as their toxic relationship blows up and leads to a devastating fire; when the smoke clears, one lies dead, and the other sits behind bars.

Jenn grew up with a violent big brother, Jimmy, who preyed on his own family. She wants her incarcerated sibling to admit that he killed their mother.

Amy grows worried about her brother Joel's violent and erratic behavior, and his girlfriend, Melanie, suffers abuse at his hands; when a man is shot dead, Joel is engaging police in a lethal standoff.

Audrey agonizes about why her brother murdered their mother and sister in cold blood.

Katie always knew her grandpa, Buster, as a kind man; he had a dark past but was now the center of their big, close family; then came the murder; he was not the man Katie thought she knew; she finally learns the hard truth about her grandfather.

Once a teen killer in a gruesome murder-for-hire, Terry seeks redemption.

Michelle looks up to her father, but over time, fear and disgust replaces respect; as a teen, her world changes forever as horrific revelations buried for years finally emerge; Michelle's father must answer for his crimes.

Patrick Pidock knows there's something dark inside him, and his daughter, Fawn, and those around him suffer from his sudden outbursts; he's warned that one day he'll kill someone, but no one knows how dangerous he is until he takes a life.

In 1990, two young men confess to a double murder. They claim they were assaulted and killed in self-defense. Thirty years later, the two men have very different stories of what happened that night — but only one is telling the truth.

During the day, Lorenzo Gilyard is a soft-spoken and well-liked man, but at night, he's a monster, preying on women; his best friend, a trained social worker, misses the signs; going inside the prison to get answers from the notorious serial killer.

A husband heads down a dark and violent path, ending in the brutal murder of his own parents. His daughter and wife want to know why.

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