A Stranger's Acquaintance

I was a private detective, assigned to investigate several mysterious deaths in a nearby city. A city full of ungrateful people, who seemed to have no mind to the fact that death surrounded them. All of the deaths had two things in common: each victim had a bite mark on their neck and a strange lined symbol on their wrist. The bite was deep and thick like fangs piercing the snow-white skin of the latest victim. The lined symbol looked as if it was a bindrune, one made of three fateful runes for a person to use on the simple pale skin of any person. The rune of death was seen on all of the bodies. At least that's what they called it. The police, but for me on the other hand? I called it the harvest rune.