The Perfect Murder - Season 4

After New York City fashion photographer Joel Schoenfeld is shot dead in his Greenwich Village studio, detectives uncover a dark secret and a twisted tale of revenge.

Film director Adrienne Shelly is discovered hanging by a bed sheet from the shower rod in her bathroom; while Shelly's death looks like a suicide, her husband insists it was murder, and detectives start to believe him.

An intruder shoots Daniel Ott dead with a shotgun in a stunning case of mistaken identity that leads investigators into the heart of one of the most dangerous criminal rings in the country.

Twenty-six-year-old car dealer Christopher O'Brien takes a stranger for a test drive and never returns; investigators wonder whether O'Brien's criminal past has caught up with him.

Forty-two-year-old Miami mother Raquel Calderin vanishes without a trace on her way home from work in 2012; the investigation into disappearance leads detectives deep into a disturbing family picture, and the truth will haunt them for years to come.

When Robert Schwartz, a father of three, dies in a brutal murder in his own home made to look like a ritualistic killing, the investigation uncovers a killer much closer to home.

After 39-year-old Dawn Viens goes missing, her chef husband, David, reports she ran away to escape her problems; the investigation leads detectives to an unexpected killer who disposed of Viens' body in an unimaginable way.

Randy Scheffield's family finds him dead in his bed and assumes he has succumbed to a heart attack, but detectives slowly uncover a murder conspiracy that will rock Scheffield's small town for years to come.

Atlanta preschool teacher Julie Love goes missing just a week after getting engaged to boyfriend Mark; detectives find numerous suspects in the teacher's disappearance, but the truth turns out to be far worse than they could have imagined.

Pro football player Sean Taylor is shot dead by an intruder in his Miami home.