Diana's wedding day goes sideways the moment the groom's closest female friend arrives dressed in white, and nobody on his side sees a problem. If he gets to keep a close friend of the opposite sex, Diana decides, so does she.
She recruits Arthur, who will one day run the Sterling Group and has known her since they were kids, to pose as her gay best friend and throw the groom's hypocrisy back in his face. The act soon uncovers more than cheating, including money that has gone missing. Keeping up the performance puts her oldest friendship to a test neither of them expected.
