What is the name of House M.D.’s second-season finale?

The second-season finale of House M.D. is titled “No Reason.”

The episode was broadcast on May 23, 2006. Its story begins when Gregory House is shot by a former patient’s husband, creating a surreal and psychologically unusual examination of House’s perceptions and medical condition.

The title is especially notable because it connects to the episode’s themes of causality, pain, and the limits of rational explanation. House spends much of the story trying to understand what is happening while the audience is given deliberately shifting perspectives.

“No Reason” is sometimes confused with “Meaning,” the season-four finale, or with “No More Mr. Nice Guy,” another House episode title. It is specifically the closing episode of season two.