The Love Hypothesis premieres Wednesday, September 23 on Prime Video.
By Elazar Abrahams
Streaming platforms have become very good at identifying a certain kind of “booktok” novel: heavily promoted to women, designed to be devoured quickly, and built around a familiar collection of tropes. From The Idea of You and My Oxford Year to People We Meet on Vacation, these adaptations have become their own dependable content pipeline. Some are better than others, but most arrive with the same basic promise. You already know where the story is going, and the pleasure comes from watching an appealing cast get there.
The Love Hypothesis, adapted from Ali Hazelwood’s bestselling novel, is a surprisingly solid version of that formula. It does not reinvent the streaming romcom, nor does it seriously attempt to. What it does have is a charming lead performance from Lili Reinhart, strong chemistry between its central couple, and a setting that gives a well-worn story a little personality.
Reinhart plays Olive Smith, a Ph.D. candidate focused on securing her future in academia. When she realizes that her best friend Ahn has feelings for Jeremy, a man Olive previously dated, she impulsively kisses the first available person in sight to prove that she has moved on. That person happens to be Adam Carlsen, an intimidating professor with a reputation for being cold, blunt, and generally unpleasant. The kiss eventually turns into a mutually beneficial fake relationship, complete with rules and boundaries that will surely remain uncomplicated and professional forever.
The biomedical research setting is the movie’s smartest wrinkle. Laboratories, academic politics, grant pressure, and professional uncertainty provide a cute new backdrop for an extremely recognizable romance. The film finds some genuine fun in applying scientific language to feelings that cannot be neatly measured or controlled. Olive may understand how to construct an experiment, but she is considerably less confident when she becomes the subject of one.
Still, no amount of lab equipment can disguise how closely The Love Hypothesis follows the standard track. Within the first few minutes, it is easy to predict the turns in Olive and Adam’s relationship, the purpose of nearly every supporting character, and the misunderstandings that will temporarily pull the couple apart. The fake-dating setup, the emotionally unavailable man, the conveniently forced proximity, and the inevitable third-act complication all arrive more or less on schedule. For many viewers, that familiarity will be comforting. The film is a strong version of the story they came to see. For anyone hoping to be surprised, however, the movie offers very little resistance.
Reinhart is what keeps the predictability from becoming tedious. She is expressive without overselling Olive’s dilemmas and has the easy charisma required to carry a movie whose ending is never in doubt. Even when Olive makes a choice because the plot needs another obstacle, Reinhart makes the anxiety and uncertainty behind it feel sincere. She is funny, vulnerable, and completely at home as a romantic comedy lead.
Tom Bateman takes a little longer to win the audience over, which is exactly what the role requires. Adam initially seems less like a romantic possibility than a particularly severe workplace hazard. Bateman does not rush to soften him. Instead, he lets small moments of concern and generosity gradually reveal what is underneath the unfriendly exterior. We warm to Adam at roughly the same pace Olive does, and that measured shift gives the romance more credibility than the screenplay’s familiar machinery might otherwise allow.
The supporting cast also helps the film feel lively beyond the central pairing. Rachel Marsh and Nicholas Duvernay bring energy to the friendship plot that sets everything in motion, while Jaboukie Young-White is especially welcome. He has the quick, relaxed presence of someone who understands exactly how to make the most of the rom-com best-friend role without turning it into a collection of reactions from the sidelines.
Director Claire Scanlon keeps the movie moving and understands that the success of this kind of story depends less on novelty than on chemistry, timing, and whether the audience enjoys spending time with the characters. On those terms, The Love Hypothesis works. It is glossy, sweet, and more engaging than its rigid adherence to genre convention should allow. The movie never discovers an unexpected result, but it runs the familiar experiment competently enough to make the foregone conclusion satisfying.
I give The Love Hypothesis a B+.
