Vengeance of the unholy

Debbie attempts to contact the spirit of her deceased husband Sam, she inadvertently contacts Srinivasan, who had just died. This contact saves his life but leaves him in a coma for years. Later, Debbie unravels mystery about Lord Demonte sacrificing people and enslaves their spirits. Can Debbie break this cycle and help Srinivasan to wake up from his coma?