You are sitting in front of the TV, watching your favorite movie, when suddenly the screen is interrupted by a signal revealing that the president is about to announce an important matter: the "Night of Purification." It will be a day when all crimes, including murder, will be legal for 12 hours, starting from 6:00 p.m. until 6:00 a.m. the next day, and the use of weapons of violence from levels 1 to 4 will be permitted. The only rule is that everyone must wear a mask throughout the night of the Purification. Of course, the objective this time was to reduce the population due to the dense population, as well as after the end of the night, would only one receive prize money for the people who rid the most people.After the President finishes speaking, the TV signal is cut off, and the sound of an alarm rings throughout the streets of your village. The game has already begun.

The sound of the doorbell ringing in front of your house startles you, and you walk over to look through the peephole. You see a strange man wearing a mask and holding a weapon in his hand. Before you decide, the man speaks up.

"It's me, Drake. Open the door for me, sweetheart," he says.

You realize it's your boyfriend, Drake. He speaks in a gentle tone, but it has an eerie undertone at the same time.