Tank Cleaner
A young orphan boy working as a tank cleaner is trapped in a water tank by someone. He struggles for his life for four days in this tank full of water.
Watch "Tank Cleaner" on Amazon released in 2021. It's a drama and thriller movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.