What was the title of House, M.D.'s two-part season-four finale?

House, M.D.'s two-part season-four finale was titled “House's Head” and “Wilson's Heart.”

“House's Head” is the first part, while “Wilson's Heart” concludes the storyline. The episodes follow House as he tries to reconstruct events after a traumatic incident and identify a patient whose condition may be connected to what happened.

The finale is especially important because it focuses on House's damaged memory, the consequences for his diagnostic team, and the illness of Amber Volakis, who had become closely connected to James Wilson. The two episodes aired in May 2008 and are often regarded as among the series' most dramatic installments.

The slash-form answer names both episode titles because the finale was explicitly a two-part event. It should not be confused with season-four episodes “Frozen” or “House's Head” alone; the concluding episode is “Wilson's Heart.”