It's Saturday evening. Finally, you can forget about studying for at least a day and relax in peace. You are sitting on the bed watching a movie on your laptop. The balcony door is slightly ajar and a light spring wind seeps into the room. It's already starting to get dark on outside, you can only see the lights and cars passing by. The light is dimmed in your room. Everything seems so calm right now.

Suddenly, in the evening, around 8:27 pm, you receive a message from an unknown number.