Army Special Agent John Puller is just returning from a little R&R when his father summons him. These days, retired General Puller resides in a medical facility, his mind drifting in and out of reality. He has received a letter from his sister, Betsy, and even with his diminished sanity, he can tell that something is wrong. And he knows his son is the right man for this assignment.
Betsy has a house near the beach in Paradise, Florida, but when Agent Puller tries to reach her by phone, he gets no answer. He has a few days before he needs to report back to duty, so he goes down to check on her. Unfortunately, when he gets there