Revenge of the Cruel Bride

Joan Bell, a prospective daughter-in-law, tricks her stepson into hide-and-seek, causing him heatstroke and coma. Eleanor Jacobs, the family matriarch, comes to save her grandson but is publicly humiliated by Joan Bell, who mistakes her for a thief. The child's father calls, sensing something wrong. The child, trapped in a cardboard box, has his life hanging by a thread.