In The Overcrowded World And Cramped Space Colonies Of The Late Twenty-first Century, Tedium Can Be Endured Through The Use Of The Drug Can-d, Which Enables The User To Inhabit A Shared Illusory World. But When Industrialist Palmer Eldritch Returns From An Interstellar Trip, He Brings With Him A New Drug, Chew-z, Which Is Far More Potent Than Can-d. But Could The Permanent State Of Drugged Illusion It Induces Be Part Of Something Much More Sinister?