The Bestseller

the addictive and suspenseful debut thriller to keep you gripped in 2026
A suspense-filled domestic psychological thriller about a therapist who spills her client's confidential secrets, and her friend who writes them into her next bestselling novel - perfect for fans of Freida McFadden, Claire Douglas and Daniel Hurst.

YOU TOLD HER YOUR DARKEST SECRETS.

NOW MILLIONS WILL READ THEM .

'A gripping thriller that plumbs the dark depths of our closest relationships' CLAIRE MCGOWAN

'Brilliant and chilling . I tore through the pages' - SARAH EASTER COLLINS

'What a unique premise and so well executed. Tight plotting, and great characters. THE BESTSELLER is set to fly. I loved it!' - LOUISE SWANSON

***

Therapist Helena Salve knows that client confidentiality is the number one unbreakable rule of her job. But the constant stories of coercive control and threat she hears from her client Belle about her dangerous husband have been wearing her down. One night over too many glasses of wine, she tells her best friend Tala everything that Belle has told her.

The problem is, Tala is a down-on-her-luck novelist who is looking for an idea for her new thriller.

Months later, Tala is excitedly telling Helena that her publisher is saying this is going to be her biggest book ever. The story is Belle's story. Not only is Helena's job on the line, but if Belle's husband is as dangerous as she says, her life is too.

Why would Tala do this to Helena? She knows what's at stake.

Your friends are meant to protect you. aren't they?

Real Readers are captivated by Jenny Knightsby's debut:

It really blew me off my chair, and I had to keep reading until the last page was turned! ⭐⭐⭐⭐⭐
I loved how messy and human the friendships felt, and the moral dilemmas really keep you hooked ⭐⭐⭐⭐⭐
This one gave me tension, moral chaos and that slow creeping dread I live for in a psychological thriller. ⭐⭐⭐⭐⭐
Jenny Knightsby, whatever you write next, I will read. Put The Bestseller on the top of your TBR list now! ⭐⭐⭐⭐⭐

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