Sixteen-year-old tomboy Choo Xin Yu seems like a misfit when she joins a highly competitive, elite all-girls school in Singapore. But she quickly befriends three others who share her rebellious nature. While the girls struggle to fit in, they pledge loyalty to each other and vow to start a gang as a form of resistance. When their rebellious acts — recorded by the girls on a camcorder — are discovered by their teacher, their lives are upended. What keeps haunting Choo may be more than just the ghost she suspects is in her room.