Ellie divorced seven years ago, and her husband took custody of her son, allowing them to meet only once a year. Seven years later, the separated husband remarried and his son had a mother-in-law. Ellie wasn't worried that her mother-in-law would take her son to sleep. Eventually, the day of reunion once a year came. On the day of her first reunion after her mother-in-law was born, Erie's impatience had peaked.