So Long Valley is a gripping crime thriller packed with suspense that is set against the breathtaking landscapes of Manali. The story is about a girl who mysteriously disappears on her way from Shimla, her sister turns to the police for help. As the investigation deepens, suspicion falls on a taxi driver—but the truth is far more sinister. With a girl fleeing for her life and a killer at large, a determined cop must act swiftly before time runs out.