Books like The House Across the Lake

The Woman in the Window by A.J. Finn is the most direct companion to The House Across the Lake. Anna Fox is agoraphobic, confined to her New York brownstone, and spends her days watching her neighbors through the window while drinking too much wine.

When she sees something violent happen in the house across the street, nobody believes her. The parallels to Casey Fletcher are almost structural: both are women isolated by circumstance and alcohol, both become obsessed with a neighboring couple, and both witness something they cannot prove. Finn layers unreliable narration more thickly than Sager does, making it genuinely difficult to know what Anna actually saw versus what she imagined or remembered from one of the old noir films she watches on loop. The brownstone setting creates the same claustrophobic effect as Sager's lake house, turning a home into a prison.

Both novels also deal with grief as a distorting lens, showing how loss can make a person see danger everywhere or miss it entirely. If you liked the voyeuristic setup of The House Across the Lake, this is the essential next read.

The Last Time I Lied is Sager's own reworking of the summer-camp thriller, following artist Emma Davis back to Camp Nightingale fifteen years after three of her bunkmates vanished without a trace. Sager alternates between past and present with the same precision he brings to The House Across the Lake, parceling out information so that each chapter reframes what you thought you knew. Both novels use natural settings that should feel peaceful but instead feel threatening, turning lakes, forests, and cabins into spaces where danger hides in plain sight.

Emma, like Casey, is a narrator whose guilt and trauma make her account unreliable in specific, trackable ways. Sager builds both books around the question of what a witness actually saw versus what they have constructed from fragments of memory and fear. The camp setting gives The Last Time I Lied a different social dynamic, with teenage hierarchies adding a layer of cruelty that the adult world of The House Across the Lake does not have.

This is the best entry point for readers who want more Sager after finishing The House Across the Lake.

Lock Every Door sends Jules Larsen into the Bartholomew, a grand but fading Manhattan apartment building that offers free temporary housing in exchange for a few simple rules. The rules, of course, are not simple, and the building is not what it appears. Sager trades the open water of The House Across the Lake for a vertical labyrinth, but the effect is similar: a protagonist trapped in a beautiful space that gradually reveals itself to be a cage.

Jules and Casey share a willingness to investigate when they should probably run, driven by a combination of curiosity and financial need that makes their choices feel realistic rather than foolish. Sager constructs the Bartholomew with the same attention he gives to Lake Greene, making the building a character with its own agenda. The novel's pace is faster than The House Across the Lake, with a plot that accelerates through its second half until stopping feels physically impossible.

Both books also use class anxiety as a driver, putting protagonists in spaces they do not quite belong and watching what that displacement reveals.

The Silent Patient by Alex Michaelides introduces Alicia Berenson, a famous painter who shot her husband and then stopped speaking entirely. Theo Faber, a criminal psychotherapist, becomes obsessed with making her talk. The novel operates on the same principle as The House Across the Lake: a protagonist fixated on understanding another person, gradually realizing that the closer they get to the truth, the more dangerous their position becomes.

Michaelides and Sager both use unreliable narration as a structural device rather than a gimmick, embedding clues that only make sense on a second read. The institutional setting of The Silent Patient differs from Sager's lake house, but both create contained environments where characters cannot easily escape each other. Theo's obsession with Alicia mirrors Casey's obsession with the Royces, and both characters justify their intrusion as concern for the object of their fixation.

The twist in The Silent Patient has become one of the most discussed reveals in recent thriller fiction, and it lands with the same force as Sager's best surprises.

Final Girls by Riley Sager introduced his signature style: a protagonist defined by surviving something terrible, forced to confront the past when it starts leaking into the present. Quincy Carpenter is one of three women known as Final Girls, sole survivors of separate massacres, and her carefully maintained normal life starts collapsing when one of the others shows up at her door.

The novel shares The House Across the Lake's interest in how trauma warps perception, making it impossible for the reader to know whether Quincy is remembering accurately or constructing a version of events she can live with. Sager writes Quincy with the same combination of sympathy and suspicion he brings to Casey, creating a protagonist you root for even as you suspect she is hiding something important.

The pacing is relentless, with short chapters that function like controlled detonations. Final Girls is darker and more violent than The House Across the Lake, closer to the slasher tradition, but the psychological machinery underneath is identical.

The Whisper Man by Alex North follows a father and son who move to a new town to escape grief and land in a house near where a serial killer once operated. North builds dread the way Sager does, through setting and suggestion rather than explicit violence. The house in North's novel functions the same way the lake does in Sager's: as a space that should offer safety but instead amplifies every fear.

Both authors write about watching and being watched, creating a double layer of surveillance where the protagonist observes suspicious behavior while failing to notice the danger pointed at them. North weaves in a supernatural element that Sager does not typically use, but it serves the same purpose as Sager's misdirection, keeping the reader uncertain about what is real and what is imagined. The father-son relationship gives the book an emotional anchor that raises the stakes beyond simple survival.

Readers who want a Sager-style thriller with a warmer heart and a creepier atmosphere will find exactly that in The Whisper Man.

Home Before Dark by Riley Sager follows Maggie Holt back to Baneberry Hall, the Vermont house her family fled when she was five after her father wrote a bestselling book about the ghosts inside it. Maggie has spent her adult life insisting the haunting was a publicity stunt, but renovating the house forces her to reconsider. Sager uses the same Vermont setting as The House Across the Lake and the same technique of alternating between past and present to build two versions of events that cannot both be true.

Maggie and Casey share a stubborn conviction that they can handle the truth, even as the evidence mounts that the truth is worse than they imagined. The novel plays with the haunted-house genre the way The House Across the Lake plays with the voyeur thriller, following the conventions just closely enough to make the deviations feel like betrayals. Sager embeds the father's original book as chapters within the novel, letting readers compare his account against what Maggie discovers.

This structural layering creates a reading experience where you are constantly recalibrating your trust.