A man on the verge of a promotion takes a mysterious hallucinogenic drug that begins to tear down his reality and expose his life for what it really is.
Frederick Fitzell is living his best life—until he starts having horrific visions of Cindy, a girl who vanished in high school. After reaching out to old friends with whom he used to take a mystery drug called Mercury, Fredrick realizes the only way to stop the visions lies deep within his own memories, so he embarks on a terrifying mental odyssey to learn the truth.
Follows a pair of siblings who love but distrust each other as they embark on a white-water rafting trip with a small group. One of their friends from childhood turns out to be more dangerous than he appears.
An obscure Eastern cult that practices human sacrifice pursues Ringo after he unknowingly puts on a ceremonial ring (that, of course, won't come off). On top of that, a pair of mad scientists, members of Scotland Yard, and a beautiful but dead-eyed assassin all have their own plans for the Fab Four.