In "The Heartbreak Hypothesis," Phoebe Grant, a successful and brilliant young scientist, sets out to prove that love is nothing more than a chemical reaction. Her groundbreaking research goes viral, thrusting her into the spotlight and forcing her to confront her own painful past. As she collaborates with her charming colleague, Ethan Thompson, to test her hypothesis, Phoebe's feelings for him grow, challenging her scientific convictions. Torn between her heart and her head, Phoebe must navigate the complexities of love, heartbreak, and self-discovery, all while facing the scrutiny of the public eye. Will she prove her hypothesis, or will love prove her wrong?