Following his bath Jan is carried to his bed where he rolls around naked while his mother dries him off. She tucks him in and reads a story, but becomes enraged when she catches him masturbating, strips the blankets off and leaves him naked, crying and humiliated. Full frontal and rear nudity of the boy.
Near the beginning the autistic boy (supposed to be 11 y.o., but obviously older) is sitting nude on the floor, seen from the side. Later he is drawing a lot of pictures of penises on a wall and on a sheet of paper.