Iza is a young Warsaw high school student; when Iza moves to a new house in her hometown a year after losing her father, she meets Jim, a year older than her, who comes from a poor family. The boy is very, interested in getting to know Iza and, in order, to get to know her better, Jim invites her to stay with him. After a month of knowing each other, they are, finally, able to enjoy each other, but will their love stand the test?