Jack Frost was once an ordinary man living an ordinary life.

Then it all changed, when he was captured by a group of mysterious cultist. They submitted him to a strange ritual: bonded, he saw a dying creature, that looked like a werewolf, lying next to him. Then he felt pain as his skeleton was magically removed from his body to be replaced by the one from the creature.

From that day on, everything wouldn't be the same.

He could hear, see and smell better than ever before, he also healed much faster than anyone could believe, these benefits didn't come without a price though: He now had a craving for raw meat and was also very psychologicaly affected by the moon cycle.

In fact, Jack Frost is infected, the skeleton in his body is gradually changing his DNA to completly rewrite it for one of a werewolf. On full-moon, he can't resist much the urge to transform and hunt for blood. Given time, that would mean that Jack Frost, and the control he has on his own will and physical form, would vanish and thus free a dangerous killing monster.