Young scientist Felix Zaryanich, under the supervision of Alex Kmotrovich, is involved not only in scientific work, but also in family matters. He passionately tackles genetic problems caused by the loss of women’s ability to bear children after the fall of a comet. This threat could lead to the disappearance of humankind, and fear grips everyone. Meanwhile, other scientists propose devices for carrying and modifying offspring—which only increases anxiety. Even Alex’s daughter, Vera, decides to protest by putting on this device.