The story focuses on Sameer (Himesh Reshammiya) who has finally got his freedom when his stubby-girlfriend Shikha (Purbi Joshi) has left for a family wedding. He feels like the happiest person in the world, he parties, drinks, and even flirts with girls. He enjoys his freedom while he can, until Shikha shows back up. The rest of the story converts into a Diwali-gift for the whole family, the love bomb will blast soon, in "Damadamm!"