For seventeen-year-old Maya, the equation for happiness is simple: a dream internship at MIT + two new science nerd friends + a perfect boyfriend = one amazing summer. Then Whit dumps her out of the blue.

Maya is miserable until she discovers that her scientist mother, before she died, was conducting research on manipulating pheromones to enhance human attraction. If Maya can finish her mother's work, maybe she can get Whit back. But when her experiment creates chaos in her love life, she realizes that maybe love and loss can't be understood using the scientific method. Can she learn to trust the unmeasurables of love and attraction instead?