Suppose you did something very bad, but realized it too late, when nothing can be changed. Suppose you are nevertheless given a chance to make amends, and you try again and again, but each time something goes wrong, driving you to despair. This is exactly the situation Samantha Kingston finds herself in, a girl for whom everything always worked out and who had never known any serious problems. Friday, February 12, was supposed to be just another day in her life. But it turned out that on that day she died. Yet something keeps Samantha among the living, and she is forced to relive that day again and again, painfully trying to understand how to save her life and discovering the true value of everything she risks losing.