Let me structure the story step by step. Start with Naina suspecting something after the events of Episode 1. Show Leela planting evidence or manipulating the family. Then, Naina taking matters into her own hands to uncover the truth. Maybe a scene where Naina overhears a conversation or finds a hidden message. Build up to a climax where Leela's plan is nearly exposed, leaving the audience wanting more for Episode 3.