"When a bloodied man stumbles into Tahoe Detective Owen McKenna's office, McKenna realizes the man is Benito Diaz, a teenager he saved from a killer decades earlier in San Francisco. The killer went to prison for murdering Benito Diaz's mother. Decades later, the killer has just been paroled, and he has vowed to kill both Diaz and McKenna as punishment for his years in prison. McKenna learns that Diaz is now a doctor. He and his University of California San Francisco Medical School classmates have come to Tahoe for a reunion. What McKenna and Diaz don't know is that several of those doctors from medical school have deadly secrets that connect to the man who went to prison. Those secrets threaten death to the doctors involved, as well as Owen McKenna and his Great Dane.."--,Provided by publisher.