In the Chain Letter, Dr. Tad Summers is once again called upon to help the police solve a series of unsolved and mysterious deaths.  The only clue in each case is that each victim before they died, received a plain white looking envelope in the mail.  When they open up the mail they die. 

Even though each of the victims appeared to have been frightened to death and apparently died with a very distorted look on his/her face, the police find the letter inside of the envelope it is completely blank. There was nothing absolutely written at all on it.   The police are baffled and ask for Summers' help.  He quickly concludes that they are scared to death but there is nothing on the blank sheet of paper in the envelope.  How could that be?  Even Summers is confused by the twists of his own discernment.

Now the entire population of Southern California is scared to open their mail.  Who will be next, what can they do, and more importantly what real intent of this disastrous plot?  Now your favourite team of college professors, Dr. Melanie Marsh and Dr. Tad Summers are on the trail of fresh clues when they are led right back to their college.  Could an institution of higher learning become the killing fields of the 21st century, or will Summers be able to figure out the mystery before the killer strikes again.  It is murder, mayhem, and sex as Summers and Marsh wonder if the law can't protect you who can?