A shopping-mall Mrs. Santa Claus comes to McNamara/Troy for liposuction before the holidays, but a discovery during surgery jeopardizes her marriage to Mr. Claus. Julia must make a decision that could profoundly affect the rest of her family's lives.

In the season finale, The Carver attacks a sorority house as Kit grows closer to catching her nemesis. Sean, Christian, Matt and Cherry Peck are involved in separate games of torture. Julia makes a discovery. And the identity of The Carver is revealed.