The perfect neighborhood, the perfect neighbors, the perfect trap... New mother Holly has always dreamed of raising a family away from the city-and now that dream is a reality as she moves into an idyllic suburb with her husband Mike and their baby daughter Clare. The quiet, peaceful neighborhood couldn't be more perfect. But as the family settles into their new home, Holly can't shrug off the feeling she's being watched and followed on her morning walks with Clare. At first, she dismisses this as new parent jitters. But soon the unusual-and dangerous-occurrences on Holly's tree-lined block become impossible to ignore. As her days and nights grow more isolated and filled with paranoia, Holly struggles to convince her husband that the threat isn't just in her imagination-and that the secrets lurking in their perfect neighborhood could ruin them all.