The emotional power of "If I Stay "meets the survival story of "Maze Runner " Genetically engineered identical twins Kyle and Connor McAdams were born two years apart. Their parents figured it was safer that way, to increase their odds of survival. Connor was born first, paving an impossibly perfect path for Kyle to follow. He was the best at everything valedictorian, star quarterback etc. Kyle never thought he d be able to live up, so he didn t even try. But when Connor, 18, suddenly drops dead of a heart attack, and Kyle learns of other genetically modified kids who ve also died on their eighteenth birthdays, he s suddenly motivated to save his own life. Like Connor and all the rest, Kyle was conceived at the Genesis Innovations Laboratory, where the mysterious Dr. Mueller conducted experiments on them. The clock s ticking as Kyle searches for answers: who was Dr. Mueller really, and what did he do to cause their hearts to stop at eighteen? He must unravel the clues quickly, before, he too, becomes another perfect, blue-eyed corpse."