Some people can't let go of a grudge. Homicide Detective Sean Trann is learning this the hard way. He made the mistake of interrupting the killing spree of Boston's most notorious serial killer, Spider. Intent on finishing what he started and infuriated at Sean's previous involvement, Spider has decided to use those closest to Sean as pieces in his twisted game. Sean is the only one who can stop this executioner, but can he stay professional when his loved ones are on the line?