The Mai family is a large family with many members, and 8-year-old Kevinis the youngest member of this large family. His naughty personality often brings all kinds of troubles to the family and is affected by the family. Unanimous rejection. One night before Christmas, Kevin and his brother had an argument and made a mess of the family. Kevin was punished by his mother. He was wronged and made a wish to make his family disappear. Unexpectedly, the family went to France to celebrate Christmas the next day. They made a mistake in their busy schedule and left the naughty Kevin at home.
Kevin thinks that his wish to change his family has come true. This rare freedom makes him very happy. He is happy at home and does whatever he wants. But there is also a side that frightens him-he must face the long night alone and watch the house alone. Just as Kevin enjoys his unfettered life, Harryand Marvintwo clumsy thieves who have a lot of jokes and set Mai’s home as the target of the burglary and break in. His life.
In the supermarket, Kevin, who was studying independence, met Marley, a neighbor known as the "sleigh madman". He is an old man with a strange character. There are many terrible legends about him. Kevin hurried away with fear. On the way to escape, he unfortunately encountered the thieves who had just finished stealing and was followed by them. The witty Kevin used various methods to decorate the house as a human being and deceived the thieves. Unexpectedly, the two thieves accidentally learned that there was only Kevin in the Mai’s family and decided to steal that night. Kevin was panicked when they knew their plan.
On Christmas Eve, Kevin found "Santa Claus" and made a wish for his family to come back. Seeing the family reunion for Christmas, he felt extremely lonely. In the church, Kevin met the old man Marley and found that he was not as scary as the legend. The old man Marley told Kevin about the contradiction between him and his son, and Kevin convinced him to reconcile with his son. The resourceful and courageous Kevin decided to use his own strength to defend his homeland, he did not hesitate to set up various traps in his home, which made the clumsy thieves embarrassed and caused all kinds of jokes. But after all, there is a huge disparity in power. Kevin was caught by two thieves. Fortunately, the old man Marley appeared in time and saved Kevin. At this time, the police also arrived and arrested two not-so-savvy thieves. Kevin successfully protected his home.
On the second day of Christmas, Kevin's family rushed back. The family was very happy to be together, and Kevin also grew up a lot in the process of living independently. The old man Marley and his son are back together, Kevin is very pleased, and life has returned to the happiness of the past.
