Rural doctor Ivan Boyko receives an invitation to a clinic in the capital. Here the hero meets an institute friend, Dmitry Kostenko, a successful associate professor. Very soon Ivan becomes convinced of the moral dishonesty of Dmitry, who appropriated the scientific work of his modest colleague Vennik. Boyko exposes the dishonest candidate of sciences to the team.
as Иван Бойко
as Костенко
as Венник
as профессор Гармаш
as Люся Гармаш
as Вера
as Грачёва
as Мария Васильевна
as Алексей Кравчук
as Тоня
as Грачёв
as Борисоглебский
as больной мальчик
as таксист