A Garda sergeant is found beheaded with an Irish tin whistle sticking
out of his neck. He was due to give evidence at a major inquiry into
police corruption. The murder sends a clear message to any future
whistleblowers: silence is safe. The corruption inquiry hinges on the
arrest of one of Cork's most dangerous drug dealers. There was enough
evidence to convict him, but instead he walked free. The arresting
officer was DCI Katie Maguire and she's determined to expose the
truth--but soon finds that people would rather keep a dirty secret than
lose their head