I am renting a room in an apartment where a mother and her adult daughter stay in one room, I am in one room, and there is another roommate in another room. My lease was for 1 year, and it's been a year since so the lease has expired.

The mother locks her adult daughter in the room like a prisoner at all times and they are at home almost all the time. I also find that the daughter makes strange noises. I have no problems paying the rent the last month before I leave. I mean that I just want to leave one day without letting them know. Because I don't want to see or talk to these people ever again! Can I leave the place without notice?