10 Sizzling Summer Mystery and Thriller Books to Keep You Up All Night

Casey Fletcher, a recently widowed actress trying to escape a streak of bad press, has retreated to the peace and quiet of her family’s lake house in Vermont. Armed with a pair of binoculars and several bottles of liquor, she passes the time watching Tom and Katherine Royce, the glamorous couple who live in the house across the lake. They make for good viewing—a tech innovator, Tom is rich; and a former model, Katherine is gorgeous.

One day on the lake, Casey saves Katherine from drowning, and the two strike up a budding friendship. But the more they get to know each other—and the longer Casey watches—it becomes clear that Katherine and Tom’s marriage is not as perfect and placid as it appears. When Katherine suddenly vanishes, Casey becomes consumed with finding out what happened to her. In the process, she uncovers eerie, darker truths that turn a tale of voyeurism and suspicion into a story of guilt, obsession and how looks can be very deceiving.

A wedding celebration turns dark and deadly in this deliciously wicked and atmospheric thriller reminiscent of Agatha Christie from the New York Times bestselling author of The Hunting Party.

The bride – The plus one – The best man – The wedding planner – The bridesmaid – The body

On an island off the coast of Ireland, guests gather to celebrate two people joining their lives together as one. The groom: handsome and charming, a rising television star. The bride: smart and ambitious, a magazine publisher. It’s a wedding for a magazine, or for a celebrity: the designer dress, the remote location, the luxe party favors, the boutique whiskey. The cell phone service may be spotty and the waves may be rough, but every detail has been expertly planned and will be expertly executed.

But perfection is for plans, and people are all too human. As the champagne is popped and the festivities begin, resentments and petty jealousies begin to mingle with the reminiscences and well wishes. The groomsmen begin the drinking game from their school days. The bridesmaid not-so-accidentally ruins her dress. The bride’s oldest (male) friend gives an uncomfortably caring toast.

And then someone turns up dead. Who didn’t wish the happy couple well? And perhaps more important, why?

One year ago, Isabelle Drake’s life changed forever: her toddler son, Mason, was taken out of his crib in the middle of the night while she and her husband were asleep in the next room. With little evidence and few leads for the police to chase, the case quickly went cold. However, Isabelle cannot rest until Mason is returned to her—literally.

Except for the occasional catnap or small blackout where she loses track of time, she hasn’t slept in a year.

Isabelle’s entire existence now revolves around finding him, but she knows she can’t go on this way forever. In hopes of jarring loose a new witness or buried clue, she agrees to be interviewed by a true-crime podcaster—but his interest in Isabelle’s past makes her nervous. His incessant questioning paired with her severe insomnia has brought up uncomfortable memories from her own childhood, making Isabelle start to doubt her recollection of the night of Mason’s disappearance, as well as second-guess who she can trust… including herself. But she is determined to figure out the truth no matter where it leads.

When Lux McAllister and her boyfriend, Nico, are hired to sail two women to a remote island in the South Pacific, it seems like the opportunity of a lifetime. Stuck in a dead-end job in Hawaii, and longing to travel the world after a family tragedy, Lux is eager to climb on board The Susannah and set out on an adventure. She’s also quick to bond with their passengers, college best friends Brittany and Amma. The two women say they want to travel off the beaten path. But like Lux, they may have other reasons to be seeking an escape.

Shimmering on the horizon after days at sea, Meroe Island is every bit the paradise the foursome expects, despite a mysterious history of shipwrecks, cannibalism, and even rumors of murder. But what they don’t expect is to discover another boat already anchored off Meroe’s sandy beaches. The owners of the Azure Sky, Jake and Eliza, are a true golden couple: gorgeous, laidback, and if their sleek catamaran and well-stocked bar are any indication, rich. Now a party of six, the new friends settle in to experience life on an exotic island, and the serenity of being completely off the grid. Lux hasn’t felt like she truly belonged anywhere in years, yet here on Meroe, with these fellow free spirits, she finally has a sense of peace.

But with the arrival of a skeevy stranger sailing alone in pursuit of a darker kind of good time, the balance of the group is disrupted. Soon, cracks begin to emerge: it seems that Brittany and Amma haven’t been completely honest with Lux about their pasts––and perhaps not even with each other. And though Jake and Eliza seem like the perfect pair, the rocky history of their relationship begins to resurface, and their reasons for sailing to Meroe might not be as innocent as they first appeared.

When it becomes clear that the group is even more cut off from civilization than they initially thought, it starts to feel like the island itself is closing in on them. And when one person goes missing, and another turns up dead, Lux begins to wonder if any of them are going to make it off the island alive.

Innocence doesn’t bail you out; it just makes you easier to trap.

Frida and Gabriel arrive seeking a fresh start at the stunning Ara Hotel in the secluded desert of Escalante, Utah. Once so close they were able to finish each other’s sentences, they’ve grown apart in recent years after a sudden, unspeakable tragedy. Now, at the luxe resort, they are ready to reconnect between dips in the pool and hikes on spectacular desert trails. It all feels like paradise—until the dead body of a beautiful young woman who was vacationing at the Ara with her powerful, much older husband is discovered.

When the local police arrive and suspicion quickly falls on Gabriel, Frida is forced to revisit memories from their upbringing in a cloistered cult in upstate New York, their dramatic escape, and the scandal that followed. Frida’s belief in Gabriel’s innocence never wavered at the time, but now even she can’t ignore the evidence mounting against him.

Alternating between past and present timelines, Our Last Resort builds toward a shattering climax that uncovers the fate of the murdered Ara guest and poses the question: how well do we ever really know those we love? Multi-layered, gripping, and intense, Clémence Michallon’s latest suspense novel is a nail-biter until the last page, cementing her status as a major new talent in the genre.

Sophie O’Neill left behind an envy-inspiring career and the stressful, competitive life of big-city Chicago to settle down with her husband and young son in a small Texas town. It seems like the perfect life with a beautiful home in an idyllic rural community. But Sophie soon realizes that life is now too quiet, and she’s feeling bored and restless. Then she meets Margot Banks, an alluring socialite who is part of an elite clique secretly known as the Hunting Wives.

Sophie finds herself completely drawn to Margot and swept into her mysterious world of late-night target practice and dangerous partying. As Sophie’s curiosity gives way to full-blown obsession, she slips farther away from the safety of her family and deeper into this nest of vipers. When the body of a teenage girl is discovered in the woods where the Hunting Wives meet, Sophie finds herself in the middle of a murder investigation and her life spiraling out of control.

It’s Nantucket wedding season, also known as summer-the sight of a bride racing down Main Street is as common as the sun setting at Madaket Beach. The Otis-Winbury wedding promises to be an event to remember: the groom’s wealthy parents have spared no expense to host a lavish ceremony at their oceanfront estate.

But it’s going to be memorable for all the wrong reasons after tragedy strikes: a body is discovered in Nantucket Harbor just hours before the ceremony-and everyone in the wedding party is suddenly a suspect. As Chief of Police Ed Kapenash interviews the bride, the groom, the groom’s famous mystery-novelist mother, and even a member of his own family, he discovers that every wedding is a minefield-and no couple is perfect. Featuring beloved characters from The Castaways, Beautiful Day, and A Summer Affair, The Perfect Couple proves once again that Elin Hilderbrand is the queen of the summer beach read.

People don’t just disappear without a trace….

Shelby Tebow is the first to go missing. Not long after, Meredith Dickey and her six-year-old daughter, Delilah, vanish just blocks away from where Shelby was last seen, striking fear into their once-peaceful community. Are these incidents connected? After an elusive search that yields more questions than answers, the case eventually goes cold.

Now, 11 years later, Delilah shockingly returns. Everyone wants to know what happened to her, but no one is prepared for what they’ll find….

Riley March and her friends are headed to ritzy, remote Palm Key Island for one last blow-out party weekend before college. It’s the vacation of a lifetime—beautiful beaches, epic nightlife, and hot guys like Riley’s crush—superstar soccer player Sebastian Ramos. There’s just one catch. Everyone on this trip is hiding something. Riley is hiding her past in order to fit in. Sebastian is hiding his feelings for Riley. And someone is hiding what really happened to Jordyn Chang, a classmate that mysteriously died last summer.

Things take a dark turn after one of their friends goes missing, and a hurricane cuts the group off from civilization. Trapped inside their rental house, a killer stalks them one by one. No one is safe. Everyone’s a suspect. As the body count rises, Riley and her friends will have to confront the secrets they’ve been keeping if they want to stay alive…