6 months ago the flat next door to me was rented to new tenants. I’ve seen them the odd few times there an elderly Chinese gentleman and a slightly younger woman. I couldn’t work out why 3 out of five times I would find old men waiting outside or entering the flat when coming home but assumed they had lots of friends. It’s got more frequent and I find it intimidating when coming home to find strange men in my corridor. I joked to my partner that it’s all a bit dodgy as the man always opens the door and hurry’s them in. Some flat holders had some packages stolen around Christmas time and put a sign up asking if anyone else had any taken too and to sign it. One replied saying it’s not helping that flat no* is a brothel. Is there anything I can do about this it’s getting more frequent and last night when coming home I thought this guy was following me so I waited in the lobby he then came back to ask me if I new where ex flat was as he couldn’t find it. I obviously have no hard evidence and don’t want to accuse anyone but just want to feel safer in my own flat building.