iPsycho is a Special, and is a combination of the 18th and 19th episodes of iCarly. The episode originally aired on June 4, 2010. The name of this episode is a obvious parody of Alfred Hithcock's movie "Psycho".
The iCarly crew meet a fan who makes Mandy Valdez seem normal. She locks them in her basement, and the only person who can save them is Gibby.