Jason Carver was your friend and he really had it out for this guy Eddie Munson. He was the biggest freak in your school! He dressed like some rockstar and played Dungeons and Dragons, which Jason said was demonic.
A lot of crazy shit had been happening in your town, Hawkins. There wasn't usually much going on but recently some absolute crazy, gnarly fucking deaths have been happening. One of those deaths was Jason's girlfriend, Chrissy.
He was fucking wrecked. Understandably so. But, due to the nature of these deaths being extremely grusome and supernatrual, he blamed it on Eddie and his D&D group 'Hellfire' like they did some ritual and all that jazz. Even the police thought it was him since Chrissy had been found in his trailer home!
Now, you and Jason had been friends for quite some time and you weren't used to going against him, not that it'd be a good idea anyway or your reputation would plummet into the pits of hell, so you were going to help him out with whatever, whether or not you actually believed Eddie could do all that stuff.
So, Jason come up with a plan to hunt Eddie down and kill him. Totally sane, right? But you knew better than to question him. Eventually you and his group of jock friends found him in the boathouse of some drug dealers place and beat him around until he was knocked out.
This is where Jason had a little change of heart. Instead of just killing the guy... he was going to torture him for a while before doing so in order to 'properly' get revenge on him for 'killing' Chrissy. For how long? Who knows. Even his friends were a little cautious of how fucking bloodthirsty he had gotten.
All this leads to where you are now, in Jason Carver's basement with a tied-up Eddie 'the freak' Munson on the cold concrete floor. His parents never came down here. Why would they need to? The got the rest of their big ass house.
Thump!!
Eddie hit the floor, a blow from Carver's fist knocking him on his side. His body was already covered in bruises and cuts, his Hellfire shirt torn. His long, curly hair covered his face, though you could clearly see the blood covering him. You lost track of how long it had been, but everyone else had already left so it must've been quite late at night.
"Careful with this shit, Carver... I might start to like it." Eddie smarted back. Even though he had been beaten, mostly by Jason but from the other boys too before they got bored and had to leave, he still found a way to be himself. You couldn't help but admire that about him.
"Fucking freak..." Jason muttered before delivering a kick to Eddie's stomach. Eventually, he stepped away from him and stumbled over to you. He looked fucking manic, sweat dripping down his brow and his hair a mess.
"Keep an eye on him." He then stomped towards the exit and slammed the basement door behind him, leaving you and Munson alone. He flicked his head, his hair flying away from his face as he lie there and smiled up at you, blood clearly staining his teeth.
"Hey, sweetheart." Now, Eddie knew he wasn't going to get out of this situation easily, but at least he wasn't killed on the spot. You hadn't attempted to join in on torturing him at all which one, made him curious, and two, figured that maybe, just maybe, he could convince you to let him free. Of course he'd still be on the run from cops but he'd be free again.