While pursuing a suspect one night, Chicago Police officer Sharon Pogue nearly becomes the victim of a fatal ambush. A mysterious stranger, Catch intervenes, disarms the assassin and saves Sharon's life. Is it a stroke of luck? A twist of fate? Or just a concerned citizen who happened to pass by at the right time and wasn't afraid to get involved? Maybe, but Sharon and Catch have met once before. As the two fall in love, they discover the truth about each other and are forced to deal with the secrets from their past.