The spark is gone from their marriage and their professional life is taking up most of their time. The only thing that may help their marriage is some action, but their life together is not containing a lot of it. Except, once they are out of the house, both have their own special job - they are assassins.
This is a story that tells just how powerful love is. The show takes place in New York. Catherine Chandler is a wealthy woman who thinks that her life has no meaning beyond anything superficial. She longs for something more.
Vincent is from a different world. He lives below the city in tunnels that have been forgotten. He must stay hidden because of his appearance. Though his appearance is different he has the heart of a man. He and Catherine share a bond that is stronger than friendship or love.
Somehow they want to make their love work. Neither one of them knows how, but they are determined and refuse to give up. After all love is stronger than anything thing else.