Review: Head Cases by John McMahon

Head Cases (PAR Unit, Book #1)

by John McMahon

Release Date: February 28, 2025

2025 Minotaur Books

Ebook ARC; 352 Pages

ISBN: 978-1250348296

ASIN: B0D1PK6HYP

Audiobook: B0DDZB1NPR

Genre: Fiction / Murder / Suspense

Source: Review copy from publisher

 

3.75 / 5 Stars

 

Summary

FBI Agent Gardner Camden is an analytical genius with an affinity for puzzles. He also has a blind spot on the human side of investigations, a blindness that sometimes even includes people in his own life, like his beloved seven-year-old daughter Camila. Gardner and his squad of brilliant yet quirky agents make up the Patterns and Recognition (PAR) unit, the FBI’s hidden edge, brought in for cases that no one else can solve.

When DNA links a murder victim to a serial killer long presumed dead, the team springs into action. A second victim establishes a pattern, and the murderer begins leaving a trail of clues and riddles especially for Gardner. And while the PAR team is usually relegated to working cold cases from behind a desk, the investigation puts them on the road and into the public eye, following in the footsteps of a killer.

My Thoughts

Head Cases is the first book in a new series, and it certainly began with an interesting scenario. I found the intricacy of the case intriguing and as a result, was glued to the pages and was quite fascinated by the team's investigation. Because this is the first book in a new series, there is a certain amount of time taken to introduce the characters and develop their unique personalities, something I appreciated. But while the case was definitely interesting, it did fall back and make use of some tropes I was hoping would be avoided. 

 

I really enjoyed the main character quite a bit. Gardner Camden is on the spectrum and I appreciated the author's research into this character's development; he was such a fascinating person to follow. Quite brilliant, but struggling with personal relationships, it was fascinating to see how his mind grasped concepts with which the rest of his team struggled, but completely missed nuances relating to social relationships.  The rest of the characters complemented each other very well and I really enjoyed learning about their unique quirks and talents. While this book focused more on Camden's relationships, I am guessing future books will reveal more about the other characters and I can't wait as the glimpses we got were fascinating. All of them are there for something they did in the past and the author gave us just enough to tantalize. 

 

The plot certainly began and ended with quite a bang, but the middle did slow down quite a bit.  I didn't mind too much as I really enjoy investigations and love learning about the political machinations of organizations the author wants to include in their books.  The themes of family, loyalty, secrets, and betrayal all found their place within the story line.  I also didn't mind that the focus was more on Gardner Camden than on the others as I feel the author will expand on the characters in future books.  However, I did wish the overall conclusion was a bit different than what it was as it was predictable and a bit tropey. I also didn't feel like the author took it as far 'into the dark side' as the subject merited.  It felt like the author was afraid to go too dark and the brevity sometimes felt off as a result.

 

Verdict

Head Cases was an intriguing first entry into a new series and I enjoyed the character development quite a bit. And while the plot was interesting and definitely had its high moments, especially the first thirty percent and the last twenty percent, overall I did find it somewhat predictable when the final outcome was revealed. I was really hoping it would have gone in a different direction. However, I did enjoy it and I will be looking out the second book when it is released.