Mark Fisher disappeared from his home in a brilliant flash of blue light almost two years ago. His friend Seth Hampton was the last to see him alive. Now a string of grisly, violent murders leads Seth to believe that Mark is back, and something evil is living inside of him.

Returning home to working class Warwick, Rhode Island, Peter Latang encounters childhood friend Donald Treebeck for what starts as a simple favor and turns into a long van ride into two friends past.