The Wanderer

At night, the only moment where supernatural beings are allowed to visit our world, a strange person wanders in the streets. Or is it really a person? His face is shrouded in darkness, his head being covered by a green hoodie. He doesn't say a word. However, his aura is menacing. Many people have been found dead on the streets, their head completely ripped off. The police does not know how such an atrocious act could be committed, but a homeless man named Luke is about to find out.