In an idyllic community of wealthy California families, new teacher Molly Nicoll becomes intrigued by the hidden lives of her privileged students. Unknown to Molly, a middle school tragedy in which they were all complicit continues to reverberate for "her" kids: Nick, the brilliant scam artist; Emma, the gifted dancer and party girl; Dave, the B student who strives to meet his parents' expectations; Calista, the hippie outcast who hides her intelligence...