A month before the New Year, a decorated Christmas tree appears in the office. Two friends - an office security guard and an office brownie - conduct an experiment on their employees, encouraging them to express their desires under the Christmas tree. Having learned about these desires, friends embody them in a variety of ways, using psychology, sociology and even cybernetics as the basis. The most ordinary situations - conflicts, career, love - acquire unexpected interpretations and methods for resolving them. The reader learns the secrets of human relationships and managing them.