In a town in northeastern Pennsylvania, Keller and Grace Dover, Franklin and Nancy Birch, and their respective offspring - each couple with a teenager and adolescent apiece - are best friends. While the two families are celebrating Thanksgiving together, the two adolescent girls, Anna Dover and Joy Birch, go missing. Based on events earlier in the day, the two families believe that the girls were abducted by whoever lives in the camper van parked in their neighborhood. Their beliefs are strengthened after they meet the resident of the camper, Alex Jones, a mentally childlike young man who is supported in every respect by his overprotective aunt, Holly Jones, and based on other subsequent evidence about Alex that emerges. However, Detective Loki, the lead police investigator, is pretty certain that Alex did not abduct the girls, he instead initially following leads of known sex offenders and pedophiles in the area. In addition, Loki has no evidence to hold Alex in custody, placing him at odds especially with Keller, who is certain that Alex is the one who abducted the girls. While Loki continues his investigation with Keller accusing him of not doing his job by following what he considers are pointless leads, Keller decides he has to take matters into his own hands. He has to decide how much he will involve Grace, Franklin and Nancy in getting Alex to divulge where the girls are by any means possible. His decisions as in who he will involve in getting Alex to talk may depend on how like-minded he believes the other three are, they who may be as devastated as he is, but who may neither be certain that Alex is the perpetrator or go to the same extremes as he to get the information from Alex.