Aitbaar is a romantic thriller drama. The movie revolves around a beautiful girl named Neha (Dimple Kapadia), who is the only daughter of wealthy Mr. Khanna. Due to his deteriorating health, Mr. Khanna wishes her daughter to get married as soon as possible, thus, he gets her married to Jaydeep (Raj Babbar), and entrusts her with all his wealth. Soon after, Mr. Khanna dies; on the other hand, Jaydeep takes no interest in the wealth or Neha, which leaves her devastated. However, it is much later she realises why Jaydeep married her. Will she be able to deal with the conspiracy and safeguard herself?