3 months ago, Jenna Barton was supposed to meet her best friend Celia. But when Jenna arrived late, she found that Celia had disappeared. The only piece of evidence is a lone diamond earring found where they were planning to meet. And even though Jenna has obsessively surfed message boards devoted to missing persons cases, she is no closer to finding any answers. But when her son's new girlfriend disappears too, Jenna begins to unwind the tangled truth behind Celia's tragedy. And as long-buried secrets finally come to light, she discovers how completely lives can be shattered by a few simple lies.