Blind, shy Mimi and restless, crazy Lisa discover the amazing worlds of neighbours in their house. The extraordinary friendship of these two girls brings a lot of adventures, and also opens the hearts of people living in the house. The grey building becomes more cheerful and open - now all the people will celebrate Christmas together, because Christmastime – it's the best time to create new memories for the future. And probably correct the old, wrong ones, deeply hidden in our minds.