Praful Patel (Kangana Ranaut) is a divorcee whom her parents (Hiten Kumar and Kishori Shahane Vij) are trying to get remarried to a decent man from their own Gujarati community. But Simran is not at all keen on marriage. Working in the housekeeping department in a hotel, she has plans to buy a house of her own, for which she has applied to the bank for a loan. She has finalised the property which she wants to buy and is only waiting for the bank loan to be sanctioned. Her conservative father, with middle-class values, is totally against Praful’s plans, and the two of them often end up fighting with one another.

Praful’s loan application is rejected by the bank. Driven to her wits’ end, she tries her luck in a casino but loses all her money. A private money-lender in the casino lends her money which also she loses then and there. For Praful, consuming alcohol, gambling, and sleeping around with boys are all a part of life.

She tries to seek financial assistance from her dad but fails in her endeavour. Distraught that she wouldn’t be able to buy a house, she agrees to meet a prospective Gujarati groom as her father has promised to help her if she meets the guy. The prospective groom, Sameer (Sohum Shah), is a decent man who wants to study further. While he approves of Praful, she doesn’t take him too seriously. The two, nevertheless, keep meeting and so do their families. Praful’s father does not give her any money for buying her house even though she meets Sameer and spends time with him.

Meanwhile, Praful has now started looting banks by threatening the cashiers and making away with the dollars they give her, fearing for their lives. Her immediate aim is to collect $50,000 which is what the moneylender is demanding by way of repayment of the principal amount plus interest charged at an exorbitant rate. She manages to conceal her identity in each of the bank robberies but soon comes to be referred to by the media as the ‘lipstick bandit’ because of the threatening notes scribbled with lipstick on pieces of paper which she pushes into the hands of the trembling cashiers.

The police, clueless about her identity, is hot on the trail of the lipstick bandit for the various bank robberies. In the meantime, Praful realises that all her stolen money, stacked by her in the locker at her workplace, is stolen by her manager, Mike (Rupinder Nagra). She revolts and even beats him up but to no avail.

What happens thereafter? Does Praful get her money back? Does the law catch up with her? Does she marry Sameer? Does Sameer get to know of her unclean habits?