Fan Casting

I recently rewatched the Blumhouse 2019 reboot take on Black Christmas aaand... yeah it's awful but I still think they have some good ideas and I decide to fix that movie bc why not? Shortly before the Christmas holidays, the members of two fraternity houses (one for girls and one for boys) begin to be attacked and murdered by an unknown killer. The murders seem to be related to a fight between both houses due to a terrible incident of abuse that occurred a year earlier, so now girls and boys will have to put aside their differences and join forces to stop the murderer and show him (or her) that this generation is no longer able to be the victim again... I've decided to keep some aspects and characters from the 2019 film and remove many others like the sexist "all men are bad/all women are good" plot or the ridiculous black liquid aspect; In this movie we will see good people vs. bad people (no matter the gender), the main plot will focus on the girls after one of them (Riley) is sexually abused, the sorority sisters will have to deal with people pointing them out as liars, on the other hand there will also be a subplot focused on the boys being accused of being abusers (even though only one of them [Brian] was Riley's abuser) and receiving constant death threats and vandalism to their fraternity house and the movie it will definitely be R rated.