Replying...
Intro. It was the day of the purge ... where there were no rules, you could do what you want ... This event is only held once a year where you can get your whole anger ... for this event the population has dropped because several people were killed, a technology was also created to survive although ... your life will depend if you are a hunter or are not an attractive prey ...

The Purge (La Purga, if you are not English Speak)

@Liam