Marie, Monika, Sárka, Blanka, Renata, these are just few names of the girls who stay at a boarding-house of the textile vocational school. Each of the girls is different, each has her own fate. The serious and sensitive Marie shares a room with Sárka, a girl from a children's home and superficial Monika, who is confident due to her provocative beauty and a rich family background. Monika in comparison to other girls has always a boy-friend and still she keeps some in reserve. One of them is lance-corporal Ota from an ad. But Monika cannot write interesting letters, Marie is writing them instead of her.