Maria comes to Italy from Poland to reunite with her sister Eva, who left seven years earlier and claims to have made a lot of money working as an interpreter. Maria will later discover that Eva is a high-priced call girl when her sister is murdered after a "business meeting" at a hotel. To find out who the killer is, Maria decides to start answering her sister's cellular phone and taking appointments with her former clients... (机译)玛丽亚来意大利从波兰团聚与她的妹妹伊娃，谁离开七年前，并声称已经取得了很多钱的工作作为一个解释。玛丽亚稍后会发现，伊娃是当她的姐姐“商务会议”在旅馆后杀害高价应召女郎。要找出凶手是谁，玛丽亚决定开始回答她姐姐的手机，并采取预约与她的前客户...