Ubik is a science fiction novel written by Philip K. Dick. It tells the story of a future where psychic powers and advanced technology coexist. The protagonist, Joe Chip, finds himself trapped in a reality-altering conspiracy after an explosion. As he tries to unravel the truth, the boundaries between life and death, reality and illusion, become increasingly blurred. Ubik is known for its mind-bending plot twists and philosophical exploration of quantum reality.