How can I retrieve my possessions and not break any laws?

Can they keep me from getting my possessions from his apartment? We have lived together for 5 years. Both of our names were on the lease. He may have had my name removed recently, as I have moved out on October 4. He is unfortunately an alcoholic. But I was unable to take some of the heavy items at that time, nice things that were mine before we met. When I left I told him I would be back for them when I could, he seems okay with that but now he will not allow me to retrieve my things. He states I owe him money and will not give them back unless I give money. I don't owe him any money. I still have keys to the apartment. I have thought about letting myself when is at work and take my things that way but I know he would call the police on me. He is going to be upset regardless what I do, the cash value of my possessions would be around $2,000. There is a very nice Berkley and Gay dresser that is my main concern which was in perfect condition when I left. It was just too heavy for me to get down 2 flights of stairs when I moved. He will not talk or read any form of communication from me. I am stuck and want my possessions.