Set in two timelines, 'One Plus One' follows the story of twin sisters Maya and Mira through key moments in their life. The bond between them strains and frays under the weight of Mira’s eating disorder, and one fateful night when it all comes to a breaking point. Will the sisters find a way through together?

Twenty-six-year-old Lila has lived with her Obsessive Compulsive Disorder diagnosis for most of her life and finally feels she’s in a place where she’s able to live with it. That is, until young filmmaker, Sahil Gupta, appears in her life, asking questions, challenging her status quo and making her world open up in new and scary ways.