Synopsis (from Amazon):

A device that can save a life is also one that can end it

Kadence, a new type of implanted defibrillator, misfires in a patient visiting University Hospital for a routine medical procedure—causing the heart rhythm problem it’s meant to correct. Dr. Kate Downey, an experienced anesthesiologist, resuscitates the patient, but she grows concerned for a loved one who recently received the same device—her beloved Great-Aunt Irm.

When a second device misfires, Kate turns to Nikki Yarborough, her friend and Aunt Irm’s cardiologist. Though Nikki helps protect Kate’s aunt, she is prevented from alerting other patients by the corporate greed of her department chairman. As the inventor of the device and part owner of MDI, the company he formed to commercialize it, he claims that the device misfires are due to a soon-to-be-corrected software bug. Kate learns his claim is false.

The misfires continue as Christian O’Donnell, a friend and lawyer, comes to town to facilitate the sale of MDI. Kate and Nikki are drawn into a race to find the source of the malfunctions, but threats to Nikki and a mysterious murder complicate their progress. Are the seemingly random shocks misfires, or are they attacks?

A jaw-dropping twist causes her to rethink everything she once thought she knew, but Kate will stop at nothing to protect her aunt and the other patients whose life-saving devices could turn on them at any moment.


Misfire is the second book in the excellent series by Tammy Euliano. The first is Fatal Intent, which I literally could not put down. I felt the same way about Misfire—I just didn’t want to stop reading. From the first book, I knew I was in for a complicated, twisting plot with engaging characters. I don’t usually read medical thrillers and found the writer’s style refreshing and uncomplicated. Fatal Intent introduces the main character, Kate Downey, an anesthesiologist who gets involved in the machinations of evil people. In the first book, dissimilar yet preventable deaths in a hospital lead to deep trouble for the doctor already on probation. More trouble comes from all sides as she investigates, but she also has strong allies—her Aunt Irm, her medical student Jenn, tech guy Nathan, and a potential romance in Christian.

Misfire puts the focus on pacemakers and their lethal misfires. Kate’s beloved Aunt Irm has to wear one after a recent cardiac event. What I especially like about the writing is how complicated medical issues are made less so without feeling like I’m being talked down to or the terms oversimplified, so we miss the nuances. They’re an inextricable part of Kate’s life and so they are a natural part of the character. She feels strongly about what she does for her patients and advocates for their care and safety, which is how she gets involved in these investigations. Again, lots of twists and turns, subplots to work out, and a heartbreaking but satisfying ending. Also, I like the juxtaposition of suffering hearts and her growing romance with Christian, which is difficult in different ways for both.

A five-star read, which I also highly recommend to all mystery lovers.

Author Bio:

Tammy Euliano writes medical thrillers. She’s inspired by her day job as a physician, researcher and medical educator. She is a tenured professor at the University of Florida, where she’s been honored with numerous teaching awards, nearly 100,000 views of her YouTube teaching videos, and was featured in a calendar of women inventors (copies available wherever you buy your out-of-date calendars).

When she’s not writing or at the hospital, she enjoys traveling with her family, playing sports, cheering on the Gators, and entertaining her two wonderful dogs.

Website: http://www.teuliano.com

Facebook: https://www.facebook.com/teuliano

Twitter: https://twitter.com/teuliano

Instagram: https://www.instagram.com/teuliano/

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Amazon link: https://amzn.to/3Chdv7t

Goodreads link: https://bit.ly/3Z8GTqu