In the overcrowded world and cramped space colonies of the late 21stcentury, tedium can be endured through the use of the drug Can-D, whichenables the user to inhabit a shared illusory world. When industrialistPalmer Eldritch returns from an interstellar trip, he brings with him a newdrug, Chew-Z, which is far more potent than Can-D, but threatens toplunge the world into a permanent state of drugged illusion controlled bythe mysterious Eldritch.