18 Best New July 2025 Mystery Book Releases
Looking for the best July 2025 mystery book releases? This month is packed with suspenseful reads across every subgenre: thrillers with obsessive relationships, cozy capers with cakes and corpses, supernatural hauntings, and campus secrets that refuse to stay buried. Below, you’ll find all the new releases in thrillers, cozy mysteries, horror, young adult thrillers, and more, all in one place.
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July 2025 Thriller Book Releases
Ruth Ware is back with one of my most-anticipated books of the summer, and a sequel no less. These thrillers deliver psychological tension, unreliable narrators, dark humor, and even a little yacht-bound murder.
The Woman in Suite 11 by Ruth Ware
Lo Blacklock returns, this time to a luxury hotel in the Swiss Alps. When she gets pulled into a midnight call from a woman claiming to be the billionaire owner’s mistress, she finds herself on a dangerous chase across Europe. A tense, globetrotting follow-up to The Woman in Cabin 10.
Key themes: travel journalism, cat-and-mouse, billionaire secrets
Grab The Woman in Suite 11 on Amazon
This Stays Between Us by Sara Ochs
Ten years after her best friend disappears during a study abroad trip, Claire is called back to Australia, because Phoebe’s body has finally been found. But Claire has a secret: she’s the one who killed her. A slow-burn thriller where the past is about to catch up.
Key themes: study abroad secrets, reunion suspense, unreliable narrator
Grab This Stays Between Us on Amazon
Matchmaking for Psychopaths by Tasha Coryell
This one sounds like so much fun in the darkest way. After being dumped, Lexie distracts herself with her job, matching psychopathic clients with dates. But when a heart shows up at her door, she starts wondering if she matched herself with a killer.
Key themes: serial killers, twisted romance, stalker energy
Grab Matchmaking for Psychopaths on Amazon
Sunburned by Katherine Wood
When her eccentric ex pulls her into a blackmail scheme on the island of St. Barth’s, Audrey knows she should’ve said no. But when a body turns up and a yacht gets trapped with a killer aboard, she realizes someone wants more than money.
Key themes: island noir, blackmail, billionaire secrets
Julie Tudor is Not a Psychopath by Jennifer Holdich
Julie is 49, loves spreadsheets, and is totally not a stalker. When the younger man she loves starts seeing someone else, she decides it’s time to eliminate the competition. A dark comedy about romantic delusions and murder.
Key themes: obsessive love, age-gap obsession, dark humor
Grab Julie Tudor is Not a Psychopath on Amazon
Mean Moms by Emma Rosenbaum
NYC’s most elite private school moms are not ready for Sofia, a stunning new arrival from Miami. But as “accidents” start happening, it’s unclear who the real threat is, and how far these moms will go to protect their turf.
Key themes: elite mom drama, satire + suspense, dangerous women
You Belong Here by Megan Miranda
Beckett thought she left her past at Wyatt College behind, but when her daughter enrolls there, she’s pulled back into a mystery that destroyed lives twenty years ago. Now it might destroy hers.
Key themes: campus secrets, family ties, returning home
Grab You Belong Here on Amazon
She Didn’t See It Coming by Shari Lapena
A woman vanishes from her luxury condo without a trace. The perfect couple’s perfect life crumbles as police dig into secrets no one wants exposed. Lapena does what she does best: make you suspect everyone.
Key themes: domestic suspense, missing person, secrets unraveling
Grab She Didn’t See It Coming on Amazon
July 2025 Cozy Mystery Book Releases
From influencer bakers to ghostly neighbors and rooftop showdowns, July 2025 cozy mysteries are a whole mood. These are clean, funny, and full of quirky charm, plus there’s a Mastiff named Baby solving crimes. Yes, really.
Icing on the Murder by Valerie Burns
A wedding planner gets skewered and it’s up to Maddy, influencer-turned-baker, to figure out who wanted her dead before her own big day. Bonus points for a large dog named Baby helping out.
Key themes: bakery mystery, bridal expos, bridezilla victim
Grab Icing on the Murder on Amazon
Rooftop Ransom by Eryn Scott
Meg’s summer plans are interrupted when a guest winds up linked to a dead body at her front door. A cozy with eccentric apartment vibes and a paranormal twist. Perfect for fans of Only Murders in the Building.
Key themes: ghostly roommate, rooftop drama, downtown Seattle
The Game Is Afoot by Elise Bryant
Mom-sleuth Mavis accidentally gets pulled into a murder mystery on the soccer field. Between playdates and existential crises, she’s got to juggle parenting and amateur detection like a pro.
Key themes: mom comedy, suburban chaos, murder moms
Grab The Game Is Afoot on Amazon
Murder at the High School Reunion by Lee Hollis
A cheerleader is found dead at the 25-year high school reunion, and now a famous actress is the prime suspect. Luckily, two local PIs are on the case in this small-town whodunit.
Key themes: reunion drama, PI partners, past grudges
Grab Murder at the High School Reunion on Amazon
History Lessons by Zoe B. Wallbrook
A history professor gets pulled into a murder mystery on campus with the help of a swoony bookseller-slash-ex-detective. Smart, romantic, and just the right amount of chaotic.
Key themes: academic cozy, amateur sleuth, reluctant romance
Grab History Lessons on Amazon
July 2025 Horror Book Releases
The Bewitching by Silvia Moreno-Garcia
A multigenerational witch horror from the author of Mexican Gothic. Set across three timelines, 1900s Mexico, 1930s university life, and 1990s academia, it blends horror history with a slow-burning curse.
Key themes: witchcraft, gothic horror, family secrets
It Was Her House First by Cherie Priest
A grieving woman inherits a haunted mansion once owned by a vindictive silent film star, and unknowingly reawakens its ghosts. Classic gothic meets ghost horror with plenty of creeping dread.
Key themes: haunted house, ghostly vengeance, claustrophobic setting
Grab It Was Her House First on Amazon
One Yellow Eye by Leigh Radford
A virologist secretly keeps her infected (and undead) husband hidden in their home while racing to find a cure. A creepy, intimate horror about love, obsession, and denial during a post-zombie outbreak.
Key themes: zombie apocalypse, scientific ethics, obsession spiral
July 2025 Young Adult Thriller Book Releases
Not Quite Dead Yet by Holly Jackson
A young woman learns she’s going to die in seven days, and sets out to solve her own murder. If you love countdown thrillers and dark academia vibes, this new YA from Holly Jackson is a must.
Key themes: ticking clock, small town, girl detective
Grab Not Quite Dead Yet on Amazon
July 2025 Mystery Book Releases
Mrs. Plansky Goes Rogue by Spencer Quinn
Senior sleuth Mrs. Plansky is back after her yacht burns down, and her tennis partner disappears. Light, funny, and delightfully unconventional.
Key themes: amateur sleuth, Florida noir, missing persons
Grab Mrs. Plansky Goes Rogue on Amazon
Which July mystery release are you most excited about? Let me know in the comments.
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