David, barely in elementary school when he first meets Lanny, lives in awe of his next door neighbor for close to a decade. Lanny is the mysterious neighbor whom you think you know, but deep down realize you don't. Lanny comes and goes at all hours, takes mysterious trips at the drop of a hat, and is gone for months, and even makes the newspapers in an unflattering way. He fills a serious void in David's life, one that began before David even realized it. Lanny is there before, during, and after David's own family life begins to pull apart, leading to surprising results. This is their story.