Erika Cirioni's case isn't like the others we've explored in our podcast. While there surely was a crime scene, police never found it. Until March 2012, when some children found her remains in the woods in Montville, she technically was considered a missing person. That was more than five years after she vanished on New Year's Eve 2006.

In this week's episode of "Case Unsolved," we'll dig deeper into Erika's last known moments and the years that followed. Where did police look for her? Why might someone have wanted to kill her? And who did she talk to on that fateful New Year's Eve?