Charlotte Cory is a young woman convict on Death Row who has built up a friendship with Frank Nitzche through mail correspondence, whilst her attorney desperately tries to appeal the verdict before Charlotte's time runs out. With only days to spare Frank realizes that he has fallen in love with Charlotte and discovers that there is much more to the tragic circumstances of her imprisonment than he first thought - her life is now in his hands. Frank races to solve the puzzle that will reveal the truth, and tell the secrets that both he and Charlotte have been concealing, before it's too late.