Olive Smith is a third-year Ph.D candidate who does not believe that love lasts. Her best friend Ahn likes Olive's ex-boyfriend, but she would never make a move. It won't be easy to convince Ahn that she has moved on because scientists like proof. She decides to kiss the first man she sees and that turns out to be Adam Carlsen, a young professor. He agrees to keep up the charade and pretend to be her boyfriend. After a scientific conference becomes disastrous for Olive, he surprises her with his unwavering support. Soon her little experiment makes Olive realize that the only thing more complicated than a love hypothesis is analyzing your own heart.