Bluebonnet Noir follows the story of a private investigator, Garth Gall. His rather boring schedule gets spiced up as Jack Dallas invites himself into Garth's small office. Jack has a murder case that drags Garth all the way from his office in Orlando to a small backwater saloon in Texas. In search of the culprit behind the murder of Jack's sister, his only clue is a bizarre calling card. A single blue bonnet grasped in the hand of each victim. Will Garth manage to crack the case and what will happen when his handsome client refuses to let him work alone?