The line between hate and love blurs when two exes still sizzle more than a Bunsen burner on full blast.

I have two goals: Sign-off on the newest pill for-her-pleasure as a favor to the CEO and ferret out the mole selling company secrets to an investigative journalist. I didn't expect to find my ex-husband in the pharmaceutical lab where I'm assigned to work.

Sam Grant: reserved, quiet, exceptional in bed. He's always been the stable and responsible one. I brought the chaos.

But we're no longer who we were all those years ago.

Every day of sparring and banter shows me what we could be. It's taking all I have to keep my hands to myself and not give in to our chemistry.

My dream job is on the line, and I'm afraid if I let myself fall for Sam again, I'll lose everything.

As the secrets start to mount, I have to figure out if I can trust Sam and...myself.

Chemistry of the Heart, a steamy rom-com series set at a pharmaceutical company in Seattle, Washington, features second chance after divorce, opposites attract, women in STEM, and misguided matchmaking tropes. Find out what happens when a scientist must rely on the one woman he never got over, his ex-wife, to help him confirm the results on an important drug trial and to also clear his name.