Advertising agency employee Daniel was unlucky. The girlfriend with whom he lived for four years unexpectedly left him, leaving him a puppy, Doggo, as a “memento.” And now every morning the dog goes to work with its owner. To prevent him from lying on the couch all day, he is made a “postman” - and Doggo runs around the offices with correspondence in his teeth. But the friendly and cheerful atmosphere in the team instantly changes when Daniel wins a creative competition. How to survive the envy and irritation of colleagues, the intrigues and machinations of former friends? And Daniel understands: wisdom, patience and love must be learned from a dog - a true friend who will never betray.