Dhanush plays a happy-go-lucky guy in Adhu Oru Kanakkalam. Priya Mani plays a maid working in his house. The story of their romance is told with Balu Mahendra’s characteristic sensitivity. To provide the glamour interlude, Tejasree has been romped in. She plays an actress. Dhanush is her ardent fan. In one sequence, he falls asleep with her photograph. She appears in his dream and both do a steamy song together. Once the dream ends, Dhanush wakes up to disappointment. But the audience would definitely be happy.