Eddie Morra, a burnt-out writer, discovers a top-secret pill that unlocks 100% of his brain's capacity. He instantly acquires mind-bending talents and mesmerizing visions that bring him big money, beautiful women, and limitless success. But his dream life soon becomes a waking nightmare, as the drug's brutal side effects take their toll and Eddie finds himself entangled with a cunning Wall Street power broker who wants everything Eddie has, and more.