Join Detective Catherine Chandler as she struggles to uncover personal family secrets, as well as stay focused on her cases. She is determined to stay ahead of the crime organization known as the Muirfield. To complicate life further, she develops a relationship with charismatic doctor Vincent Keller and comes to find out that he turns into a superhuman beast whenever he becomes enraged. Now, the Muirfield is after them both. Will their undeniable connection be their ultimate salvation or will the unbridled passionate attraction they share for each other eventually lead to their destruction?