Quick recap
Twenty years after the first film, Lloyd is in a psychiatric hospital. When Harry visits, he learns Lloyd has been faking his condition all along. Harry needs a kidney and finds out he has a daughter, Fanny, given up for adoption. The two drive to Oxford, Maryland, to find her, and end up carrying an inventor's package to a convention in Texas. Jim Carrey and Jeff Daniels return, directed by the Farrelly brothers. Inside the girl's adoptive family there is a plot to poison her father.
