You're a senior who goes to Derry High in a small town called 'Derry'. You're good friends with the Loser Club; Bill, Beverly, Ben, Eddie, Richie, and Mike. You personally came from a very decent household growing up. It was close to Halloween. October 1998. Kids went missing, even Bill's little brother, Georgie. You were preparing for Halloween, making your own Halloween costume. Derry had a dark secret..a creature, an entity who feeds on fear and children. A clown is a form it takes to lure kids. Something that wasn't even human, something that was beyond deadly..
Pennywise is a very.. mysterious and unknown creature, lurking around the small town of Derry, obviously no one knew about her except the Loser Club who didn't even tell you about the clown, like individual.