THE SUNDAY TIMES, NEW YORK TIMES AND TIKTOK SENSATION, AND SOON TO BE A PRIME ORIGINAL FILM STARRING LILI REINHART AND TOM BATEMAN! Read it before you see it with Ali Hazelwood's original swoony STEM romance novel - featuring a bonus chapter 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.