Outside the gates of a residential society in New Delhi, in the shadows of the trees, Bhavna Paliwal quietly steps out of her SUV. She is in disguise, dressed like a domestic help in a cheap orange polyester salwar-kameez, chappals from the local market, plastic bangles and chipped nail paint. Her story is that she has been spurned by her lover and is in desperate need of any work she can lay her hands on. There follows a week of gossiping and complaining with the other maids, including one in particular who is working in the house of the suspect, and Paliwal has all the information she needs. Case: pre-matrimonial investigation. Period of investigation: three weeks. Result: not suited, the groom is having an affair with the maid.