''Masti'' revolves around three bachelors, Meet (Vivek Oberoi), Prem (Aftab Shivdasani) and Amar (Ritesh Deshmukh). Their lives are carefree until they each get married and turn into bitter, unsatisfied husbands. Meet marries Anchal (Amrita Rao) who is obsessively possessive about her husband. Prem marries Geeta (Tara Sharma) who is overly religious and thus their sex life suffers. Amar marries Bindiya (Genelia D'Souza) who is dominating and they live with her equally aggressive mother (Archana Puran Singh). Fed up, the men get together one day and make plans to reintroduce the fun and excitement back into their lives. They set their sights on other women but eventually realize they have all been seeing the same girl, Monica (Lara Dutta). She blackmails the trio, threatening to expose the affairs to their wives unless they give her Rs.10 lakhs.