A Japanese pacifist and socialist, unable to face the dire consequences of conscientious objection, is transformed by his attempts to compromise with the demands of war-time Japan.
This movie contains 4 potentially triggering events.
While it never gets particularly explicit, there's a lot of heavily implicit sexual content especially since most of the women characters are "comfort women" (sex slaves).
There is a scene in which in looks like this is about to happen to a POW by a camp guard who has his foot on his head, but this ultimately doesn't happen.
One character is tortured extensively towards the end. He is beaten repeatedly, tied up, held upside down, etc. Several of the Chinese POW's are beaten by their Japanese overseer's, in one instance, a guard tries to crush a guy's head with his feet but doesn't.