On June 8, 1988 the nude bodies of Mark and Delores Stepp were discovered in the bedroom of their home. They had been viciously murdered; stabbed a total of 27 times, plus Mark Stepp had been shot at well.

The normally peaceful town of Stillwater, Oklahoma was shocked. Some feared drug-crazed addicts, or a Satanic ritual killing while others thought it was related to the Stepps' secret involvement in nudist activities.

The Stepps were regarded as a model American family, but following the police investigation, two likely suspects emerge -- Francine Stepp, the couple's daughter, and her best friend, Cindy Wynn.

Why would a teenager who "had everything" brutally murder her own parents?