What is the title of House M.D.’s season-five finale?

The season-five finale of House M.D. is titled “Both Sides Now.”

The episode reveals that much of House’s apparent relationship with Cuddy has occurred during a hallucination caused by his Vicodin use. In reality, House has been hallucinating while trying to manage his pain and declining mental state. The revelation leads him to recognize that he needs psychiatric treatment.

“Both Sides Now” aired in 2009 and serves as a major turning point for the character. House enters Mayfield Psychiatric Hospital at the beginning of the sixth season’s two-part premiere, “Broken.” The finale therefore connects directly to one of the show’s most significant changes in setting and tone.

The title is shared with a well-known song written by Joni Mitchell, but the episode title itself is the relevant House M.D. answer. “No Reason” is the season-two finale, while “Help Me” is the season-six finale.