When actress and model Allison Langley leaves her former rockstar husband, Christopher, in the middle of the night, it's all her Oak Hill neighbours can talk about. The gossip comes to an abrupt halt when five-year-old Billy Barnes goes missing on his walk home from kindergarten. As the clock ticks down, police are unable to find any trace of Billy, forcing Rachel to ponder the enemies she's made in their well-off suburb. When another child goes missing, the town is put under a microscope as the police try to get to the bottom of the disappearances.