The Little Theater of Vilnius invites young viewers to the play "Dear Uncle of the Amusement Park!" based on Toves Janson's beloved stories about the Troll Mummies. The director of the play is Olga Lapina, a children's theater specialist who was awarded the Golden Stage Cross for her work in this field. The young director was inspired for this performance by Scandinavian literature, which impresses her with its unique engaging mood, connection with nature, and its ability to reveal the mechanisms of children's thinking: "It is full of various shades of human relationships, it is not afraid of non-"childish" themes, such as death, loneliness, betrayal. There is a huge potential for theater in such themes."

The play tells about an Uncle working a boring job in an amusement park. The hero, who communicates with few people and does not particularly like fun and noise, is constantly surrounded by a group of relatives who play, dance and sing. How can these two sides find a common language? How does a closed uncle get rid of his shyness? How does the merry band learn to accept him for who he is?