The Darkness

When Oliver Queen comes back to Starling City, he is advised a therapist, Lydia Martin. When the vigilante comes out and kills people at night, Lydia gets entangled with death. Soon, she finds out Oliver's secret and helps him right his father's wrongs.

"I have to become someone else, something else"
"I just hear voices in my head"

Arrow season 1 with parts of Teen Wolf

I do not own any of the characters