In a society where people are constantly focused on their screens and digital platforms, a mysterious figure suddenly captures the attention of the entire nation. A person wearing an unusual mask, known only as Gaetal, begins appearing through online broadcasts and messages. Without revealing their true identity, this masked figure introduces a disturbing system that allows ordinary citizens to participate in a chilling decision. Gaetal launches a secret voting process known as the Killing Vote. Through this system, people receive notifications on their devices asking them to vote on whether certain criminals deserve to live or die. If the majority chooses death, the targeted individual is hunted down and executed. What begins as a shocking online phenomenon quickly spreads fear and curiosity across society. As the public becomes increasingly involved in this dangerous game of justice, authorities struggle to uncover the identity of the masked figure and stop the killings. The series explores the moral dilemmas, social tensions, and psychological impact created by a system where ordinary people are given the power to decide another person's fate.