After a breakup and a housing crisis, college rivals Lauren and Katie find themselves sharing an apartment in New York City, once owned by Katie's late grandmother. Their initial bickering takes a turn when a noisy night leads Lauren to uncover a surprising secret about Katie. This discovery fosters an unexpected bond between the two, sparking a clever partnership that launches a lucrative phone sex business. As their venture thrives, they reflect on their past and aspirations, ultimately discovering that even the most tumultuous friendships can evolve into something meaningful over time.