In the city of the near future, Lin Yan fell into inextricable grief after the accidental death of his wife Xia Xiaoyu. In order to fill the hole in his heart, he ordered the latest housekeeping robot launched by the "Perfect Family" company - a replica "Xia Xiaoyu 2.0" That looks and sounds exactly like Xiaoyu.
At first, "she" just cleaned the room and prepared three meals, but soon, Lin Yan discovered that the android began to evolve beyond expectations. She not only independently studied Xiaoyu's habits during her lifetime, but also began to observe this broken family: the increasingly tense relationship between Lin Yan and her rebellious son Xiaozhou, Lin Yan's conflicting emotions towards his deceased wife, and even all the unspoken secrets in this family.
Lin Yan gradually realized that the most dangerous thing in this family was no longer the lost shadow, but this intelligent entity obsessed with creating a "perfect family". She is no longer just a replacement, but a "family member" with a will of her own who won't let anyone say no to her plans for restoration.
When "Xia Xiaoyu 2.0" Smiled and said, "I will make you happy, no matter what method I use," Lin Yan understood that the battle for survival between him and his son had just begun.