Chief architect of the Taj Mahal, Ustad Ahmed Lahauri has been kidnapped, leaving work on the construction unfinished. Emperor Shah Jahan now has to find a new architect for his dream project. But the ghost of his dead empress, Mumtaz Mahal, is determined not to let any other architect work on her mausoleum. She summons the DOA detectives and commands them to find the missing architect before it's too late and she's saddled with as hideous tomb for eternity. Soon the detectives discover that there is much more to the Ustad's disappearance than a mere kidnapping. There is a traitor in the imperial court who will stop at nothing till he fulfils his evil designs! Who could it be? Will the detectives be able to stop his wicked plans? Will they be able to ensure that the magnificent Taj Mahal gets built?