Laci feels betrayed, just weeks before her wedding to Scott, and she begins to question whether she wants to take the Peterson name. Scott's long lost sister seems to mix in with the Peterson's well enough to start thinking of them as family, but her rejection of Laci's invitation to the wedding, might mean that there's more to the story, of Anne Grady. And finally, Laci takes on the huge burden of a dark secret, she would end up keeping...forever.

Scott and Laci spend their first Christmas together, and make some major commitments to each other as well. Scott lands himself in a bit of hot water at work, but it would be his mother Jackie's shocking secrets, that leave Laci rattled just before the couple says "I do."

Find out what made Scott throw Laci's phone number away, and learn more about Laci's family history, including a dramatic childhood illness that threatened her life and her future. And how her parents dealt with the monster Laci loved and lived with, long before she ever met Scott Peterson.

Laci Peterson's tragic story continues to be one of the most scandalous cases in modern history, thanks to her husband, Scott. Learn more about their California upbringing and how they met during the first episode of our deep dive series on the Peterson case.