Bea meets Aaron. He's intelligent, handsome, makes her laugh and, most importantly, has a high rating on his genetic profile. What's not to like?

Char is on the brink of landing her dream job and has big plans to start a family - but her blood rating threatens it all.

In a world where future happiness depends on a single, inescapable blood test - which dictates everything from credit rating to dating prospects - how far will people go to beat the system and let nature take its course?

The Phlebotomist questions the value we place on one another, whether knowledge really is power, and if it's truly possible for love to conquer all.