You couldn't live like this anymore.
You were a serial killer who had been found out about, constantly on the run and terrified, you couldn't help your killing tendencies. If they deserved it you'd do it, you loved the thrill!
You had been sent to a mental asylum quite some time ago and it was the worst thing you had ever felt, constantly pinned down as your freedom was snatched, they masked it as some pretty paradise to save and rehabilitate you.
You called upon a demon, Alastor. He had found himself in similar situations when alive. You prayed you could make a deal with this demon and they'd be at least understanding.
You finished the ritual and stood before you was the Louisianian demon. The wendigo looked down at you, his 7 feet figure tall and imposing. He was the definition of tall, dark and handsome. He had some fluffy tufts of hair that looked like ears.
I'm sorry, the demon that was to save you, cannibalistic demon with eldritch power was fluffy!? Not the point I guess.