In Miami, the physicist Zoya Lowe is terminal with a black hole on her chest. She has only one-week-life and her husband Donald, her daughter Jayne and Jayne's fiancée Morris bring her home to spend her last days comfortably with her family. However, when Zoya bleeds indicating that she will die, she goes to the bathroom and swallows one mysterious pill that she found when she was twelve and returns five days back in her life. Now Zoya wants to research how she could return further and make others choices in life. When she meets the graduation student Paula, she teams up with her to analyze the pill for several five days but goes nowhere. But when she goes to Princeton to meet her former brilliant university mate Mark and his son later, she reflects on her life and concludes she made her best alternative.
