Inzhener Mladenov
The day that the financial clerk Metodi Rashkov is getting retired comes. He is a shy and quiet man and he accepts all tasks given to him by his son and daughter in law without argument. With time, he becomes a housekeeper; he shops, cooks and looks after his grandson. In order to save his face in front of his friends he lies to them and falls in a number of uncomfortable situations. The "Expolsion" becomes imminent. The reason is insignificant but with great consequences. Rashkov leaves his home. Soon the freedom which he wanted becomes boring for him. The abandoned family begins to miss the grandfather. At the end everyone sees their mistakes and is ready to fix them. The birth of a second grandson is the event which brings everyone under the same roof again.
Kiril
Boev, an enthusiastic form master, is trying hard to establish rapport with his final-year students. His frankness, buoyancy and good nature soon make him a universal favorite. The only one who does not approve of him is headmaster who loves his job, but is not aware of how dated his own views are and cannot understand the young teacher. Apart from this, Boev comes in into particularly sharp conflict with his colleague and childhood chum Kiril who is consumed by jealousy and the ambition to get promoted quickly.