Something strange is happening to Dan Davis. Old wounds seem to be resurfacing for no apparent reason. Black eyes, scraped elbows and broken bones all come back to haunt him. After seeing a doctor who is less than convinced that the wounds are genuinely random, Dan takes to the internet. What he finds there is beyond anything he could have imagined. According to one website, a demon known as L'osservatore is responsible. Now, Dan must take action to rid himself of this demon and save his mortal soul. However, things prove to be a bit more difficult than he expected.