Zin McGuire is miserable. After discovering that her husband has been cheating on her, she begins to question both her self-worth and her faith in humanity.
But, as she hits rock bottom, chance encounters bring two new people into her life. There's Henry, a man who claims to be studying humankind, but who appears to be homeless. And then there's Jay, a Catholic priest facing his own midlife crisis. Jay offers to counsel Zin but finds himself wrestling with his feelings for her. Meanwhile, Henry questions Zin's dour outlook and proposes a deal to Zin; they will meet every day for ten days to judge humanity.  
Skeptical, but with nothing to lose, Zin agrees to meet with Henry, kicking off a surprising ten-day journey with her two new friends, a journey that might just give her a new perspective on life.