Penny Mills, the soon-to-be daughter-in-law of the wealthy Stone family, secretly meets her lover and tricks young Blake Stone into hiding to play hide-and-seek. Under the scorching sun, the child collapses from heatstroke. When Alison Price, the boy's grandmother, arrives unannounced, she hears his faint cries for help from behind a door. Desperate to save him, she is publicly humiliated by Penny, who calls her a thief and accuses her of stealing. The crowd condemns Alison, until a call from the boy's father reveals Blake is missing. Panic erupts as the trapped child's life hangs by a thread…