Reminds me of the movie King Rat
I didn't see the movie, but did read the book, if it's the one set in a Japanese POW camp.
I met a lady a few years ago, here in FL, who spent WWII in one of those camps. She and her husband were born in the Netherlands, he was employed by a rubber plantation in Sumatra. The Japanese overran the place, they spent the rest of the war interned in the camp, under terrible conditions. She had been 25 when captured, was a real beauty. In her 80's now. Has a lot of stories to tell.