If it weren’t for the Boardwalk, the small town of Santa Luisa might disappear altogether. The amusement park employs half the town’s workers, pulls in tourists, and gives teenagers like Tess Landers someplace to hang out on the weekends. Tess is eating a hot dog when the Boardwalk’s roller coaster—the Devil’s Elbow—jumps the track, hangs for a moment in the air, and then plummets to the ground. One of Tess’s classmates is dead on impact, two are forever maimed, and over twenty others are taken to the hospital. It’s the worst tragedy Santa Luisa has ever seen, but it’s only the beginning. As people rush to help, Tess spies a black-suited figure running away from the crowd. The crash was no accident. Five more teens will suffer before the killer is through, and Tess may be about to put herself on the list of victims.