在一种不寻常的未来，或者可能是一个稍微不同的现实里，当手机技术不复存在时，安娜和她的伴侣瑞安实现了每个情侣的梦想：他们拥有一份证明真爱的文件。他们的舒适生活虽然平凡，但安娜开始质疑他们通过将手指插入尖端机器中进行的成功的爱测试。不久后，安娜开始为Love Institute工作，受邓肯（卢卡·威尔逊饰）的指导，该机构除了通过这个神秘的测试确定一对夫妇的关系外，还训练他们加深彼此之间的联系。在那里，她与经验丰富的——而且极具魅力的——阿米尔搭档，帮助处于各种关系阶段的情侣通过一系列爱情建设活动，然后进行最后的测试。随着新同事努力改善客户的联系，安娜开始怀疑阿米尔是否是她真正的爱情，是否信任自己的感觉比机器决定的结果更可靠。
Anna and her partner Ryan have achieved every couple’s dream: they are in possession of a document certifying their true love. Their comfortable if somewhat mundane life, however, leaves Anna questioning their successful love test, administered by placing their extracted fingernails into a cutting-edge machine.
安娜和她的伴侣瑞安实现了每个情侣的梦想：他们拥有一份证明真爱的文件。他们舒适的生活，虽然有些平淡无奇，但安娜开始质疑他们成功的爱情测试，这项测试是通过将他们的手指插入尖端机器中进行的。
Anna soon begins working for the Love Institute under the tutelage of Duncan (Luke Wilson), which, in addition to determining a couples’ status via the mysterious test, trains them to deepen bonds. There, she’s paired with the experienced — and devastatingly charming — Amir to take couples at various stages of relationships through a series of love-building activities before the big test. As the new colleagues work to ameliorate the connections of clients, Anna begins to wonder if perhaps Amir is her one true love and if trusting her own feelings is a more reliable metric than what is determined by a machine.
