Nicky O' Donnell was left in a coma following an attack while she was driving a taxi for her father. The incident led to the escalation of a taxi war between two erstwhile partners, Peter Strachan and Sean O'Donnell. O' Donnell is prosecuted by ambitious lawyer Michelle Duncan, with Strachan giving evidence. Meanwhile tough guy Joseph Durrant arrives in Glasgow and shoots up Strachan's taxi office. However events take a sinister turn when prosecutor Duncan is found murdered in the court cells, and Taggart decides to apply some unconventional policing as he confronts O' Donnell directly in an attempt to put an end to the violence. Mark McManus is DCI Jim Taggart, the taciturn Glaswegian police detective in this gripping story full of twists and turns. Set against a Glasgow landscape, Taggart and his team investigate a veritable gorefest of murders.