A notebook falls into the hands of a young journalist, where he finds memoirs about his grandfather, who died in the civil wars of the early 20s. The writing does not correspond to the family legend woven about the grandfather. The young man tries to restore the truth.

The heroine, an employee of the Institute of Ancient Manuscripts, projects the events of her life onto the stories she studies from medieval manuscripts and comes to very instructive conclusions for herself.

A French boy, the son of an astrophysicist, came to Armenia from Paris. His father came to work at the observatory. Friends from the pioneer camp undertake to show the guest the beauty of Yerevan. The children escape from the camp and come to the city. A physical education teacher and a pioneer counselor go in search of them. Funny situations await children and adults…