Brian Leckner

House splits his time between treating a firefighter for uncontrollable shivering, giving Tritter a piece of his mind and handling his trial for forging prescriptions.

When a prominent member of Visualize is mysteriously killed, Jane investigates in the hopes that the case will provide a clue that will lead him to Red John.

Ross juggles duties and patients on Halloween; the new ER chief (Philip Casnoff) offends staffers; a schizophrenic (Sheila Kelley) says she is pregnant.

On Captain Andersen’s orders, Officer Nolan and Sergeant Grey are paired up for the day on patrol. Additionally, Nolan’s son and Grey’s daughter visit their dads on the job and see them in action. Meanwhile, Officer Chen is paired up with Captain Andersen, and Officer Bradford tells Chen to protect her at all costs.

While researching unsolved killings in which the victims' organs were removed, Mulder uncovers a species-altering experiment that may be traced back to his own father.

A Navy reservist asks the team for help when she realizes her husband is missing and her living room is covered in blood; Tony thinks Ziva is planning to avenge her father's death.