This is book 6 of Nancy Gideon's Midnight series. In this instance I feel 
that reading the previous books may have been more of a hindrance than a help. 
I pretty much knew the background of the returning characters, and much knew 
what to expect, form each and the behaviors they exhibited.

Stacy Kimbell has made friends in many unusual places. One of them For 
instance is in the coroners' office. He gives Stacy a call, when a very 
unusual murder victim is brought into the morgue. This victim seems to have 
some very unusual traces of blood under her nails. Since this is her field of 
research this peeks Stacy's interest. Stacy does research on blood disorders 
and takes samples of the woman's blood. Stacy's findings are very unusual, 
more samples are found under the woman's fingernails as well as strange marks 
on her neck. An even stranger thing is this is not the only person with these 
marks to be brought in recently. It seems whomever is killing these women has 
some very unusual blood.

The blood from the killer could very well be the key to curing many 
diseases, like AIDS, the one that killed Stacy's mother. Or the blood disease 
that Stacy herself has. These diseases are the reason Stacy got into blood 
research.

Although on the surface Stacy seems to be only concerned for her career 
and a not so nice person, looks may be deceiving. Stacy isn't as unfeeling as 
she seems to be. There is much more to Stacy's personality then meets the 
eye. Stacy is driven to find the owner of the unusual blood. Where the trail 
leads her is a surprise. Stacy is led directly to Louis Redman, a rich 
importer, and publicity shy recluse. 

Unfortunately it also seems that the person who the blood belongs to is 
also the person that is killing these people. Stacy must decide if this is a 
person she wants to deal with. Stacy must decide if her research and goal is 
worth giving up her morals. Should she tell the police her suspicions about 
Louis? Her trail did lead directly to him and that trail did come from the 
blood found on the victims. If Stacy's deductions are correct what she is 
dealing with something very weird. According to Stacy's deductions she is 
dealing with a vampire, but that's ridiculous. Or is it? Could vampires 
actually exist? 

Stacy decides to keep investigating before deciding on whether to turn 
him and her findings over to the police or not. Stacy must eventually come to 
terms with Louis and her suspicions. Louis wants Stacy to help him become 
human again but in return that means letting Stacy know what he really is. 
Louis swears that he isn't the one killing all these women. Stacy and Louis 
come to a strained working agreement. Louis will provide blood for Stacy to 
test, but can Stacy trust a vampire? 

Unfortunately Harper the people Stacy works for has gotten wind of her 
blood research and takes control. They move her downstairs to a restricted 
area as well as give her an escort/bodyguard. Something Stacy isn't very happy 
about. How is Stacy supposed to continue with her research undisturbed while 
being watched? And if Louis isn't doing the killings then that means there is 
another vampire in the area. Who could that be, and why is he killing women 
and making it look like Louis is doing the killings? Is Stacy really so 
determined to find a cure for blood diseases because of her mother's death or 
is there another hidden reason? Will Louis finally find someone that can make 
him human again or will he have to remain a vampire forever? 

The answers to all these questions will keep you engrossed in this book to 
the end.