Rahasya, the Bhoutik' is a supernatural murder mystery. Nandana, Deep's wife is found dead under mysterious circumstances. Deep is the prime suspect & is arrested but he loses his mental balance. Bhuvan gradually finds out that Nandana isn't dead. Nandana's sister Maya had planned this with Ashu and Dr. Sunetra to usurp Deep's wealth. They are punished. Deep & Nandana finally unite.