In the wake of their 17th anniversary, Mark discovers the shocking truth about Lorna's mystery man, Teddy, and how out of order his life really is—which forces him to make some life-changing decisions.
Mark has a recurring dream about a rat. Danni starts seeing a divorce lawyer. Lorna's sleeping pill causes her to begin sleepwalking, which leads to Mark losing a lot of sleep. Mark learns the truth about something in his past and breaks up with Danni... but maybe not for good.