At forty-three Jeff is tired of his life. But a fatal heart attack puts a stopper to that - until he wakes up in his eighteen-year-old body, all his memories of the next twenty-five years intact. If he applies those memories, he can fix his life - Until he dies at forty-three and wakes up in his eighteen-year-old body again - and again ... A novel of gripping adventure, romance, and fascinating speculations on the nature of time.