IF is the story of a medical school dropout Wallace, who's constantly burned by a bad relationship. So, while everyone around him, including his roommate Allan seemingly finding the perfect partner, Wallace decided to put her love life on hold. It was then he met a cartoon Chantry who lived with her longtime boyfriend Ben. Wallace and Chantry form an instant connection, striking up a close friendship. However, there is no denying the chemistry between them, leading the pair to wonder if the love of your life is really your best friend?