Fool Night

In the distant future, Earth is cloaked in thick clouds and the sun no longer emits light. This results in a lifeless world where plant life can no longer survive, and oxygen is sparse. However, humanity has devised a method for survival by morphing into plants to generate meager oxygen supplies to sustain themselves. Would they persist as humans in this unforgiving world, or would they choose to embrace a new life as plants, freeing themselves from their limitations? They have no choice but to make a tough decision.