The Love Hypothesis
On sale
8th September 2026
Price: £10.99
Genre
SOON TO BE A PRIME ORIGINAL FILM! Ali Hazelwood’s swoony Sunday Times bestselling novel – now in a beautiful film tie-in edition featuring:
💗 All-new foreword from Lili Reinhart
💗 A cover with exclusive movie art
💗 Adorable art printed inside the front and back covers
💗 Both bonus chapters from Adam’s perspective
A fake relationship between scientists meets the irresistible force of attraction.
As a third-year Ph.D. candidate, Olive Smith doesn’t believe in lasting romantic relationships – but her best friend does, and that’s what got her into this situation. Convincing Anh that Olive is dating and well on her way to a happily ever after was always going to take more than hand-wavy Jedi mind tricks: Scientists require proof. So, like any self-respecting biologist, Olive panics and kisses the first man she sees.
That man is none other than Adam Carlsen, a young hotshot professor – and well-known ass. Which is why Olive is positively floored when Stanford’s reigning lab tyrant agrees to keep her charade a secret and be her fake boyfriend. But when a big science conference goes haywire, putting Olive’s career on the Bunsen burner, Adam surprises her again with his unyielding support and even more unyielding…six-pack abs.
Suddenly their little experiment feels dangerously close to combustion. And Olive discovers that the only thing more complicated than a hypothesis on love is putting her own heart under the microscope.
💗 All-new foreword from Lili Reinhart
💗 A cover with exclusive movie art
💗 Adorable art printed inside the front and back covers
💗 Both bonus chapters from Adam’s perspective
A fake relationship between scientists meets the irresistible force of attraction.
As a third-year Ph.D. candidate, Olive Smith doesn’t believe in lasting romantic relationships – but her best friend does, and that’s what got her into this situation. Convincing Anh that Olive is dating and well on her way to a happily ever after was always going to take more than hand-wavy Jedi mind tricks: Scientists require proof. So, like any self-respecting biologist, Olive panics and kisses the first man she sees.
That man is none other than Adam Carlsen, a young hotshot professor – and well-known ass. Which is why Olive is positively floored when Stanford’s reigning lab tyrant agrees to keep her charade a secret and be her fake boyfriend. But when a big science conference goes haywire, putting Olive’s career on the Bunsen burner, Adam surprises her again with his unyielding support and even more unyielding…six-pack abs.
Suddenly their little experiment feels dangerously close to combustion. And Olive discovers that the only thing more complicated than a hypothesis on love is putting her own heart under the microscope.
Reviews
Pure slow-burning gold with lots of chemistry.
I fell in love with Adam's and Olive's relationship ... it's the best romance book I've read this year
Funny, sexy and smart.
Smart, witty dialogue and a diverse cast of likeable secondary characters... A realistic, amusing novel that readers won't be able to put down.
With whip-smart and endearing characters, snappy prose, and a quirky take on a favourite trope, Hazelwood convincingly navigates the fraught shoals of academia... This smart, sexy contemporary should delight a wide swathe of romance lovers.
Contemporary romance's unicorn: the elusive marriage of deeply brainy and delightfully escapist...The Love Hypothesis has wild commercial appeal but the quieter secret is that there is a specific audience, made up of all of the Olives in the world, who have deeply, ardently waited for this exact book.
This tackles one of my favorite tropes - Grumpy meets Sunshine - in a fun and utterly endearing way... I loved the nods towards fandom and romance novels, and I couldn't put it down. Highly recommended!
When a book has a certain type of magic between the pages, you manage to get from the prologue to the epilogue without coming up for air ... The Love Hypothesis was one of these books.
A beautifully written romantic comedy with a heroine you will instantly fall in love with, The Love Hypothesis is destined to earn a place on your keeper shelf.