Richie Tozier was a simple kid. He enjoyed Street Fighter, the occasional cigarette with Beverly, the sound of Eddie's laugh, making his friends happy, Eddie's eyes. He was a simple kid. He liked it that way. It was less complicated, less stressful. He preferred keeping it all simple. It was better than letting all his demons out. On the outside Richie Tozier was a simple kid. But on the inside he was a bomb that was seconds away from exploding. All of the secrets he thought he had to hide, all of the fear he felt consumed by, day in and day out, he packed it all away in a nice little box that was threatening to overflow.

This is a Richie is Mike story: Mike Wheeler is not who he said that he was. His real name is Richie Tozier. He moved into Hawkins after a failed confession and an altercation with his parents. Now three years later he's happy. Venca he's dead and he's in a happy relationship with Will. But what does it mean to their relationship when one day The Loser Club pays a visit to Hawkins?