Kim (J.D.'s girlfriend) has been offered a position St. Louis and is still undecided if she should take it as this job would separate her and J.D. for four months. Although J.D. claims that he fully supports either decision, he acts as the super-nice boyfriend so that she will not leave him. Turk tries to convince Carla to leave the hospital because he has to surrender his paycheck back to Dr. Kelso in order to cover the hospital expenses. Dr. Cox discovers that one patient has an orange skin color - an unsolved medical mystery since Dr. Cox cannot think of anything that turns the epidermis orange. Dr. Kelso punishes Elliot for taking the new job as a private practitioner by ignoring her. She takes her frustration out on Turk, who she thinks is not supportive enough. Meanwhile, no one notices that Carla suffers from post-partum depression.