Carrie Wells, a former NY Police detective, has a rare medical condition that gives her the ability to visually remember everything. She rejoins the force and uses her ability to solve crimes.

[voice-over at the beginning of each episode]
Carrie Wells: I'm Carrie Wells. Only a few people in the world have the ability to remember everything. I'm one of them. Pick any day of my life, and I can tell you what I saw or heard. Faces, conversations, clues - which comes in handy when you're a cop. If I miss something the first time, it's okay - I can go back and look again. My life is unforgettable.