can i call police about housemate? will they be able to do anything//i don’t want to create drama but feel unsafe ?

basically one of my housemates has been making me feel super uncomfortable ever since we moved in it’s been really hurtful because we used to be good friends as a soon as we got here he started stonewalling me and acting like he didn’t know me it’s been going on for months and he hasn’t stopped so I’ve kept my distance and tried to move on with my life. i’ve known he was sus for a while now because of his behavior yet a lot of people haven’t believed me and said I was making it up. last night he threw a party here without letting any of us know in advance they were up till 4 AM being super loud and blasting music and some of us work early in the morning. they also took Molly without even telling us in advance and then left their leftover drugs in the kitchen and still haven’t picked it up and it’s been a couple days. I honestly have no problem with parties here but it did make me feel super uncomfortable that he didn’t communicate it at all when I literally live right next to the living room so obviously it’s going to keep me up. I talked to my other housemates about it bc I didn’t know if I was overreacting and they said it made them feel super unsafe as well and that he’s not communicating and acting like a child. he’s been making me feel unsafe for months but now there’s physical evidence I’m wondering if I can call the police and if they will be able to even help at all I also don’t want to create more drama so I am conflicted.