Marked for Death: A Frank Thorn Case (2021)

Frank Thorn a Detective turned Private Investigator; investigates the impactful death of his mentor and friend Dale Hammer, he uncovers a message from Dale which leads him on his journey to finding a hidden package that was left behind for Frank one that can put away Shaw a crime lord that people only know the name of making them a mystery itself. Along the way he finds himself being hunted by a professional hitman soon realising that he has been Marked for Death.