After successfully stopping one of the Midwest's most heinous serial killers Mark Shaw, Inspector Ed Cassidy finds himself on the short list for Lieutenant. The celebration of his promotion would be short lived however, as the deceased serial killer's torch was picked up by a zealous admirer. She seeks justice for Shaw's demise by flawlessly executing a diabolical plan while taking on the persona of a black widow spider leaving no witness behind. The scorned lover is a brilliant chemical engineer who develops three versions of a designer drug which along with Mark's stolen journal are used to impose her own brand of justice. The journal contains explicit details of the infamous killing spree and will now aid in her exacting revenge on all those she holds accountable. Hell hath no fury like a woman scorned on the pathway to Vengeance