In a quiet suburban neighborhood, there lives a middle-aged man known for his grumpy demeanor and rigid routine. Otto, a widower who has lost his sense of purpose since the death of his wife, finds himself trapped in nostalgia and discontent. His life takes an unexpected turn when a new family moves in next door. With an optimistic mother and two energetic children, the neighbors break his bubble of loneliness and become the heart of a series of comical and touching interactions.