After long time Amitabh Bachchan and Dharmendra are pairing up with Dimple Kapadia in 'Hum Kaun Hai'. The set seems a haunted house, an isolated brick mansion where Dimple stays with her two children. Her husband an army major (Amitji) is away fighting a war. The interesting incident happens, one night he comes back when he assumes dead. It might be so scary and horror!