After a small misunderstanding aboard an aeroplane escalates out of control, timid businessman Dave Buznik (Adam Sandler) is ordered by the court to undergo anger management therapy at the hands of specialist Dr. Buddy Rydell (Jack Nicholson). But when Buddy steps up his aggressive treatment by moving in, Dave goes from mild to wild as the unorthodox treatment wreaks havoc with his life in this hilarious hit comedy that will drive you mad with laughter!