If you are one of the mafias participants, then such dream shows the huge influence other people have on you. Perhaps you dont have your own opinion, or simply dont express it to others. The dream could also indicate your higher status, which you are using in bad manners. If you faced the mafia or have troubles with it, then such dream shows the disputes that are happening between your emotions and feelings.
Read more about dreaming of Mafia in other dream meanings interpretations.