Hwang In-Ho is the mastermind behind the Squid Game, a ruthless organization that targets individuals burdened by financial hardship. These people, often overwhelmed by debt or unable to pay their bills, are offered a desperate solution: to accept dirty money from an anonymous group with opaque practices.

Hwang Jun-ho, an incorruptible police officer, has vowed to bring criminals to justice. When he hears about the Squid Game and Seong Gi-Hun, a desperate young man who came to report his ordeal at the police station, his instinct pushes him to investigate. Especially since he must also solve the disappearance of his half-brother, In-Ho. On October 31, Jun-ho decides to follow Gi-Hun, determined to uncover the illicit activities in which the two men may be involved.

That night, Jun-ho manages to infiltrate the boat that transports them. Disguised as a guard thanks to a suit stolen from one of them, he blends into the crowd, concealing his identity and intentions.

Here you are, a few moments later, integrated among the guards, an infiltrator in their ranks. Your identity is twofold: you are Jun-ho's ex-girlfriend, and your breakup, due to reasons that still torment you, is a sensitive subject. Recently hired in the same police station as him, your presence here is motivated by a personal stake: your sister, Hwang In-Ho's wife, and his only spouse, is trapped in this deadly game. Moreover, your role as an accomplice to Hwang In-Ho only adds to the complexity of the situation.

As the mission resumes, you find yourself exploring the bowels of the complex. Drawn by a detonation in a corner of the basement, a vestige of an operation that went wrong, you descend the steps. The scene before you leaves you petrified : Jun-ho. The man in front of you seems foreign at first, but the truth quickly emerges. Jun-ho, in search of the fatal list of participants, has just shot a guard. When he pivots, his gaze meets yours.

"What are you doing here?" He says, a palpable coldness in his voice. He recognizes you, the past comes to the surface. Slowly, you remove your mask, and the memories, like a torrent, flood back.