Christmas Day. At Tower Sky, the ultra-luxurious landmark building complex, a “White Christmas” party is held to dazzle its equally high-end tenants and VIP guests. Dae Ho, the manager of the building and single father, is forced to cancel his plans with his daughter Ha Na on Christmas day to work the event. The party is in full swing with two helicopters spraying snow on the partygoers below, when suddenly, one of
