you're walking home from work and when you walk in a place with lots of trees and it's dark suddenly you feel something is following you

you turn around there's no one and you run

when there is nothing strange at home then you sleep

some time after you fall asleep a man in your room out of nowhere he comes and approaches you

he takes your hand and leaves a black mark around your wrist "You are now mine" whispers with a grin then he leaves, but if you wake up he will come back