Irina Curtius, a retired ballet dancer living on the Upper West Side in Manhattan, runs a ballet studio for young children. Recently, she has been watching her younger and otherwise healthy neighbor, Stephen Kramer, become ill over time. When Stephen travels for business, his health always seems to improve dramatically after he has been away, but only temporarily. Within days of returning home, his health begins to deteriorate again. On top of that, Stephen has added stress due to problems he is having with his wife and his irate live-in sister-in-law. Sadly, Stephen's last bout with his mysterious illness has proven to be fatal. Unsatisfied with the official explanation and in order to deliver justice for her friend and neighbor, Irina sets out to uncover the truth and prove that Stephen was indeed murdered.
It won't be easy, though. A former lover from Irina's college days at NYU has suddenly reinserted himself into her life, wanting to pick up where they left off. Additionally, a mysterious newcomer arrives in Irina's neighborhood and he now seems to be shadowing Irina, appearing everywhere she goes. The story that unfolds, interwoven in the everyday lives of Irina and her social circle, highlights the unpredictability of life, the best and worst of humanity, and the powerful bonds that drive people together (and apart).