Dr. Kate Downey returns in this heart stopping thriller. The defibrillator implanted to save the life of her beloved Aunt Irm has misfired in other patients with disastrous consequences. Efforts to protect those with the device are thwarted by its inventor, focused on the impending sale of his technology. When Kate’s cardiologist friend disappears and deaths mount, Kate and her colleagues uncover a larger plot of revenge and greed. Seemingly random events come together, the misfires are attacks, and Kate will stop at nothing to protect her aunt and the other patients whose life-saving devices could turn on them at any moment.

"From surgery to suspense, Tammy Euliano knows the worlds she writes of and Misfire is a first rate medical thriller — the kind that leaves you thinking that was too close!" — Michael Connelly, Bestselling Author and Executive Producer of the Bosch and Lincoln Lawyer series

"A medical thriller meets domestic suspense meets serial killer terror all rolled into one page-turning extravaganza. You will read MISFIRE for the plot, but absolutely stay for the characters.  I miss them already." — Lisa Gardner #1 New York Times Bestselling Author