Iron Lung

Set in a post-apocalyptic future where an event known as "The Quiet Rapture" caused all known stars and habitable planets in the universe to disappear, a convict is sent to search an ocean of blood discovered on a desolate moon, using a small submarine nicknamed the "Iron Lung". The only hope left after The Quiet Rapture. In the rusting halls of crumbling space stations, the last remnants of humanity craft a submarine to explore the bleeding depths... and weld one soul inside to pilot it. But hope in this void is as illusionary as the starlight. This is not an expedition. It's an execution.