The last time I saw her - Karen Robards

In this world, Dr Charlotte Stone is an expert psychologist, helping to catch serial killers. In the next world, Charlotte's ghostly lover - wrongly executed killer Michael Garland - is facing death yet again: the ultimate annihilation of his soul. Can Charlie prove Michael's innocence and rescue him from total oblivion?
A stranger has turned up in Big Stone Gap, Virginia - a man who could be Michael's identical twin. But the resemblance is only skin deep - behind the handsome face lurks the twisted mind of the real Southern Slasher, whose heinous crimes sent Michael to death row. Charlie intends to draw the truth out of the mysterious killer . . . whatever it takes.
But Michael will move heaven and hell - even make a devil's bargain - for the chance to save Charlie's life, and feel her touch once more . . . maybe for the final time.