Synopsis：On her son’s wedding anniversary, mahjong-addicted Grandma Grace leaves little Coco alone in the kitchen. During a video call with her mother Rachel, Coco senses something is wrong, but the call suddenly cuts off. Grace ignores Rachel’s repeated calls, while Rachel’s husband Luke, out with his first love, brushes off her worries. By the time Rachel rushes home, Coco has died of gas poisoning, revealing a tragedy born from negligence and blind obedience.