Tommy Doyle is a former Police Detective who was falsely accused of a crime by a jealous fellow officer. Once exonerated, Tommy became disillusioned with the force, and in particular one officer whom he blamed for the problems he underwent, believing that the guy was behind the false accusation made against him.

Leaving the force Tommy becomes a Private Investigator although he maintains a good relationship with his long time friend and fellow officer Pete ‘Mac’ Mackintosh. Pete and the guys in the squad room all feel Tommy was badly treated so are always willing to help him with his investigations, whenever possible.

Spread across three books are some of the solved cases Tommy Doyle has on file. The first book features the winning story/case titled ‘Who Dun It.’