Based on

Movies like ZOO (2016)

A short film set in a train compartment during a single train journey. You can't just stop a moving train, you can't jump off, you remain part of it until it brakes itself. The familiar world remains outside, enclosed, passing by the windows, only reflected in the train's windows. Inside, a new ecosystem is emerging, temporarily independent, bringing together random combinations of people. It's not difficult to intersect destinies; all you have to do is enter the compartment. You never know who has boarded.