''A Aa'' revolves around the lives of 23-year old '''A'''nasuya Ramalingam (Samantha Ruth Prabhu) and '''Aa'''nand Vihari (Nithiin) and their families. Aanand, a former chef, Runs an E-food business in Hyderabad. He belongs to a middle-class family and has many responsibilities to fulfill, like marrying off his sister Bhanumathi (Ananya (actress)) and paying off debts.