Rendra is a Bintang Perubahan High School student who is talented in IT. His daily life looks perfect. However, it all turned out to be just a mask. Rendra began to feel uneasy when his best friend from childhood and the girl he loved, Nanda, was slandered by a popular senior named Vicky by posting lewd photos on social media. Rendra decides to hack Vicky secretly and spread Vicky's rotten information through the school's media mogul, Jati. His actions turned out to have an extraordinary effect. Vicky's reputation was threatened. This reaction inspired Rendra to become a hacker named Helix, who aims to reveal the rottenness of other people around him. But Helix's efforts turned out to be strongly opposed by one of his friends, Shanty, a member of the School Safety Board. Shanty, who doesn't know who Helix is, keeps trying to find out the real Helix to stop Helix's actions, which she considers violating the law. Rendra's decision to become Helix did not bring him peace. He was increasingly worried, especially when he was faced with the fact that he had to remove the masks of his four best friends, Nanda, Shanty, and Alex.