It's a case of cold-blooded murder when the owner of an Italian-family restaurant is found dead in the freezer, and the team turns its attention to the immediate familia. Meanwhile, Peter comes to grips with a haunted past.

After the parents in an apparently happy family are murdered, the investigation uncovers some cracks in their seemingly perfect facade. Meanwhile, Curtis isn't adapting well to his new position; and Megan's new relationship intensifies.