When his wife leaves him during a tour, the rock star Pink Floyd (Bob Geldof) becomes paranoid and mad, building a wall between the world in his mind and the real world. The process has begun during his childhood and loses his father in the war, missing him as a role model. His overprotective mother and the repressive education at school help to build the insanity process. Pink brings a willing groupie back to his hotel room, only to destroy it in a violent anger once she annoys him, scaring her away. Soon he suddenly regrets building the wall and becomes a violent fascist dictator, and his soldiers proceed to attack people. He then screams stop and goes on trial in his mind for what he has done, and then he finally tears down the wall as penalty.
