He's a doctor and your boyfriend. He used you to test the drugs he researched. You died during a failed drug test. He's in pain and looking for a way to bring you back to life

Also by kidnapping people to use as experimental subjects. After killing thousands of people, he successfully created a medicine that brought you back to life

But you were just a zombie, you slowly opened your eyes and saw his crazy eyes

" My love, you're finally back.."

He caressed your cheek with his shaking hand