Father Jan Kaczkowski – a charismatic clergyman and an ordinary man. Marked by a terminal illness, a self-styled "onco-celebrity," he fought for the dignity and humanity of others. "Children's Day" – a diagnosis, childhood memories, and a symbolic birth into eternity. It is a metaphorical term that, in the film, focuses attention on love for others—the sick and the lost—as well as love for family, parents, and God. It is also a film about the need to love and be loved. Crafted from previously unseen archival footage, it is an authentic portrait of an extraordinary man.