Elderly couple Roy and Angie Woodley are found brutally stabbed to death in their Fresno home. Initially believing the crime to be a robbery-gone-wrong, detectives soon realize the perpetrator may in fact be a family member with a grudge.

When Detectives looking for missing Mom, Tami Reay find blood in her car they arrest her husband, Brad. But then they receive a tip off, pointing the finger at an entirely new suspect. Could they have arrested the wrong man?

Joe Morrissey is brutally killed in what appears to be a home-invasion robbery. But closer inspection leads detectives to believe the attack was personal. The hunt is on for suspects including Joe's wife, Kay.

Melissa Atkin is found bound and murdered in her home in Smyrna, Tennessee. Eventually, the investigation focuses in on two individuals, with a series of recorded phone calls proving vital in exonerating one of them, whilst incriminating the other.

Dedicated father of two, John Riebe, is found dead on the floor of his home in Toledo, Ohio. The investigation quickly turns on those closest to John, and a series of phone calls and voicemails prove key in uncovering a shocking betrayal.