名侦探柯南剧场版15沉默的15分钟国语版The plot involves a woman who sets out a well-intentioned plan of bringing together her dysfunctional family in the wake of the family’s matriarch, her mother-in-law. She deceives her husband and others in to believe their mother left rules for the family to follow in the lead up to Christmas. Wanting to believe their mother left some guidance to help heal the wounds of her absence, the family comes together and follows the rules to the letter.