In a world after the nuclear apocalypse a scholar helps a small group of children and adults survive, staying with them in the basement of the former museum of history. In his mind he writes letters to his son — though it is obvious that they will never be read.
Not excessive gore, but there is a scene where the main character walks through a children's hospital ward and sees children being treated right after the nuclear explosion. One shot shows skin peeling off a child's leg.
I would say that depends on the viewer. It ends with a message of hope for the orphaned children after the main character's passing. "The world is not dead. Go while you have the strength, for when a man is on his way, there's still hope for him."
Several dead bodies are shown through the movie. A scene in a children's hospital ward shows children being injured from a nuclear explosion. At one point, the movie shows a child's skin peeling off their leg.
A man commits suicide, leaving his adult son behind. However, he states the son has forgiven him. A group of orphans are abandoned by their caretaker, who will move into an underground bunker.
The main character is shown having flashbacks from the previous events. A group of children develop mutism, distrust and hypervigilance, which can be considered symptoms of PTSD.
A man commits suicide after giving a speech about humanity in general, where he announces he'll be killing himself. He is shown walking to and sitting in a ditch. His death is off-camera.
The main character's wife, Anna, dies from radiation sickness. It is implied that their son, Eric, is dead, too. The museum curator kills himself, leaving his adult son behind.