Some of Us Are Liars by Fiona is a character-driven thriller about families, secrets and shocking truths. Smart plotting, layered characters, and reveals that hold up on rereads.

by Fiona Cummins
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| Title | Some of Us Are Liars |
| Writer | Fiona Cummins |
| Series | Standalone |
| Publisher | Macmillan |
| Publication date | 19th June 2025 |
| MBR star rating /5 | ⭐⭐⭐⭐⭐ |
| Genre | Crime, Mystery, Contemporary |
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I received an advance review copy for free, and I am leaving this review voluntarily.
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Synopsis: Some of Us Are Liars
There’s your side. My side. And the truth.
When Jen Miller leaves her youngest child in the care of her two sisters, she has no idea that one decision will shatter her family forever.
A glittering wedding celebration hosted by global superstar Winter Kellaway, the perfect day takes a catastrophic turn, that will expose fault lines that have long been buried beneath loyalty and love.
While Jen struggles to comprehend the tragedy and the unimaginable guilt that follows.
Detective Saul Anguish “troubled, and relentless”, is brought in to uncover what really happened.
The investigation reveals a labyrinth of secrets, and painful histories which this family has spent years trying to outrun.
A gripping, emotionally charged thriller, Some of Us Are Liars unspools a devastating mystery while exploring sisterhood, betrayal, and the dangerous shadows cast by the past.

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Review: Some of Us Are Liars
Some of Us Are Liars by Fiona Cummins is a classic rich-people, with, secrets drama that absolutely delivers on the promise of the genre.
Some of Us Are Liars: A grounded novel
Being full of twists and turns, the kind you expect but written in a way that doesn’t require you to completely switch off your brain to enjoy.
While They are bold, and dramatic, but never so outrageous that you need to suspend disbelief entirely.
This sets Some of Us Are Liars apart from many modern thrillers, that have the bold twists and turns of this Fiona Cummins, novel.
Which all apart on thinking about the novel once it has been finished. Instead, they become even more satisfying once you realise how carefully the clues were laid throughout the novel.
There is a realism to the plotting that enhances the story rather than stretching it to breaking point.
With very character in the story is hiding something, from the glamorous, wealthy sister to the policeman investigating the events of that fateful Day.
Some of Us Are Liars: narrative style
The narrative moves between different perspectives and shifts through time; However, Fiona Cummins handles these transitions so smoothly that it is difficult to lose your place in the story.
Each voice feels distinct, and each jump in timeline feels purposeful.
Conclusion
Overall, Some of Us Are Liars is a sharply crafted, emotionally resonant thriller that balances dramatic twists with grounded, believable storytelling.
Fiona Cummins delivers a mystery that feels both high-stakes and intimate, weaving family secrets, guilt, and fractured loyalties into a plot that rewards careful reading.
With its layered characters, elegant structure, and twists that land without ever tipping into the absurd, this is a thriller that lingers long after the final page. A compelling, confident novel—well worth picking up
Who Should Read? Some of us Are Liars
This novel is perfect for readers who love character-driven thrillers filled with family tension, buried secrets, and emotionally charged revelations.
Fans of domestic suspense, multi-POV narratives, and twisty mysteries that stay grounded in realism will find plenty to enjoy here.
If you like stories about messy families, moral ambiguity, and detectives with just as many shadows as the suspects they’re investigating, Some of Us Are Liars will be right up your street.

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Mark.