In the 1970s, an outwardly wholesome family begins cracking at the seams over the course of a tumultuous Thanksgiving break. Frustrated with his job, the father, Ben, seeks fulfillment by cheating on his wife, Elena, with neighborhood seductress Janey. Their teenage daughter, Wendy, dabbles in sexual affairs too -- with Janey's son Mikey. The family's strained relations continue to tauten until an ice storm strikes.