All the letters printed after Theo's name look impressive at a distance, but letters like ADHD and ODD only add up to one thing: Trouble. Theo's had more than his share of it. After his last impulse ended with his fist colliding with the wrong person's face, Theo wins a stint in juvie and loses his only friend. Not that he blames her--Paige is the one he punched. Paige collects fears the way some people collect keychains. Snakes, heights, botulism--now she gets to add Theo and dental surgery to the list. Freshly healed from the trauma, Paige finds the courage to start over in a summer-long senior residency in a nearby college town. Too bad Theo's in town too. And he's dragging all the dark memories of the past behind him. They're both drawn to a bridge that's notorious for love and death, a bridge with a cryptic lock carved with their initials. Someone's playing wicked games on this bridge, games that force them to confront their ruined friendship. One after the next, familiar items appear, terrifying puzzles carved from bits and pieces of a night they're both desperate to forget.