A film biography of Maria Skłodowska-Curie and Pierre Curie.

A psychological drama taking place in the picturesque scenery of the sea coast, in a closed circle of four people: the lighthouse keeper, his wife and a young student couple in love with each other. Young people bring to the peaceful home not only the symptoms of exuberant joy in life, but also a different way of thinking and looking at the world.

The life of engineer Maksymowicz changes dramatically when he accidentally learns that he is terminally ill.