Christmas Messages: Really Snowing tells the story of Ah Wing, a highly ambitious property manager, who is still trying to clinch a big deal on Christmas Eve, but is later killed in a car accident.

Luckily, he is granted a special offer by the Christmas God in Heaven: as long as he can help four desperate persons to regain the will to live, he stands a change to be brought back to life again. Accompanied by eight Christmas reindeers, he returns and meets a pair of gradually alienating father and daughter, two aged lover who meet again before the end of the world, a single father preparing to commit suicide, and even his own girlfriend, who has been in a relationship with him for years but is about to go overseas to pursue her studies...

So, can Ah Wing accomplish his missions and return to have a Merry Christmas?