Dead zone

In the past, in the 90s, a mass series of murders occurred in Russia. The bodies were rarely found, but even when they were, they were without internal organs. It became clear then that a maniac who trades in human organs was at work here. All police departments were involved in the capture of the maniac, but it was all in vain. Military headquarters had to be employed, but again, the long searches yielded no results. One day, a mutilated girl came to the police department, who, unfortunately, met the same maniac. From her story, it was clear that she didn't see the face as it was hidden behind a pig mask. You are volunteers who have been assigned to arrest the maniac. Whether he was caught and who hides behind the mask - you will have to find out.