Shepherd in Wolf's Clothing is pretty good. Here's a couple more suggestions
Spurning the Call of the Wild
Called to God or Call of the Wild
The pack, or the flock
"of Civilisation or Savagery"
"...amongst wolves"
"My nature...red in tooth and claw?"
The sacrament of Body and Blood
The Gleipnir leash is a thin as silk - Referencing the shackles that bound the Fenrir wolf in Norse Myth
"Leashing my inner monster"
Soul of a Man or Spirit of the Beast
Chains of Faith holding back the beast
"No beast is more savage than man, when possessed with power answerable only to his rage"
If you want something less wolf specific, but still applicable to the situation then how about something like: A long way to fall, but an easy way to get there, or plagued by my inner demon