Toaster follows the story of Ramakant (Rajkummar Rao), a man whose extreme frugality borders on obsession, often pushing him into morally dubious choices. Living in a modest Mumbai housing society with his wife Shilpa (Sanya Malhotra), he meticulously tracks every rupee he spends. His rigid world is shaken when they’re invited to a wedding, and Shilpa insists on buying an expensive toaster as a gift. When the wedding is unexpectedly called off, Ramakant becomes determined to retrieve the toaster and return it for a refund. However, what begins as a simple mission spirals into a chain of chaotic misadventures—until the seemingly ordinary appliance reveals a shocking connection to a politician’s dark secret.