THE REGRESSION STRAIN

by Kevin Hwang

Medical Thriller | Normal Range Press | Published May 26, 2025

Book Campaign Highlights

“You might never want to go on a cruise again!” ~StoreyBook Reviews

“If Contagion and The Shining had a tense, claustrophobic love child, The Regression Strain would be it. Kevin Hwang doesn’t just write a medical thriller – he locks you inside one.” ~The TX Lit Chic

“Chilling medical mystery at sea.” ~Joanne Easley

“Highly recommend to readers new to the thriller genre!” ~Little Lovely Reads

“The Regression Strain by Kevin Hwang is an explosive deterioration into total chaos aboard a cruise ship, spurred by an unknown virus that affects the frontal lobe of the human brain.” ~Reading by Moonlight

“Move over, Michael Crichton and Robin Cook. There’s a new specialist in the room, and his name is Kevin Hwang!” ~WM Gunn

“Ultimately, The Regression Strain delivers exactly what I want from a medical thriller: credible science, escalating stakes, and characters whose choices matter.” ~Bibliotica

“{…} the reader doesn’t stand a chance against hearing the ticking of the clock and enduring the claustrophobic feeling of feeling trapped.” ~Book Fidelity

“The story is well written, the pace zips along, and we anxiously await the fate of the passengers.” ~The Book’s Delight

Campaign Schedule

02/03/26Boys’ Mom ReadsSpotlight
02/04/26LSLL BlogSpotlight
02/05/26StoreyBook ReviewsReview
02/06/26The Page UnboundSpotlight
02/07/26The Book’s DelightReview
02/10/26It’s Not All GravyReview
02/12/26Reading by MoonlightReview
02/14/26Joanne EasleyReview
02/18/26W.M. GunnReview
02/19/26Rebecca R. Cahill, AuthorSpotlight
02/21/26BiblioticaReview
02/24/26Little Lovely ReadsReview
02/26/26Book FidelityReview
02/28/26The TX Lit ChicReview
03/01/26Ames for the StarsSpotlight
   

Synopsis

Dr. Peter Palma joins the medical team of the Paradise to treat passengers for minor ailments as the cruise ship sails across the Atlantic. But he soon discovers that something foul is festering under the veneer of leisure. Deep in the bowels of the ship, a vile affliction pits loved ones against each other and shatters the bonds of civil society. The brig fills with felons, the morgue with bodies, and the vacation becomes a nightmare.

One by one, the chaos claims Peter’s allies. His mentor spirals into madness and the security chief fights a losing battle against anarchy. No help comes from the captain, who has an ego bigger than the ocean.

With the ship racing toward an unprepared New York, the fate of humanity hinges on Peter’s deteriorating judgment. But he’s hallucinating and delirious…and sometimes primal urges are impossible to resist.

The Regression Strain is a fast-paced medical thriller laced with psychological suspense, perfect for fans of Michael Crichton and Blake Crouch.

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About the Author

Kevin O. Hwang, MD, is a professor of internal medicine in Houston where he sees patients and teaches residents. His academic work has appeared in leading medical journals. Nothing excites him more than chicken enchiladas, index cards, and appropriately sized packaging. The Regression Strain is his debut novel.

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