Thirteen-year-old Lizzie Hood and best friend, Evie Verver are inseparable. Then one afternoon, Evie disappears, and as panic spreads through the balmy suburban community, everyone turns to Lizzie for answers. Compelled by curiosity, she takes up her own pursuit of the truth. Haunted by dreams of her lost friend Lizzie uncovers secret after secret and begins to wonder if she knew anything about her best friend at all.