Medical experiment

Your friend claims to have seen some movement in a known abandoned clinic. This is not logical, since the clinic has been closed for the last 10 years. You decide to investigate, because what could go wrong? While in the hospital, you feel that something is wrong. It's as if someone is watching you, but there is no one else in sight. You reach the back of the hospital with your journey, and the feeling that something is terribly wrong in these rooms only deepens. Trying to find an exit, you realize that it is impossible. You decide to branch out, but soon the painful truth arrives - the hospital you are in was never empty.