A terrifyingly twisty, wholly original thriller following a group of amusement park visitors who get stuck on a roller coaster high above the ground—with no way down.Six hundred and fifty feet in the air, no one can hear you scream.Some might say that thirtysomething Cady Ellison landed herself a strange creative career, but Cady finally feels like she's found her footing. Now an online theme park influencer, she is invited to the opening of a brand-new park by her old friend, Danny, who wants to use her online profile to help build buzz for its flagship ride, Hysteria, a record-breaking 650 foot-tall roller coaster.When she arrives at the half-complete theme park site in the middle of the desert, Cady is unexpectedly met with her old college friend group: Femi, an award-winning actor, Naseem, a decorated novelist, and Winston, a member of a popular rock group. Wanting them all to sing the praises of Hysteria online, Danny has arranged an exclusive private ride for them, capped off wit