Kalidasan (Lal (actor)) works in the state archaeological department in Thiruvananthapuram (Trivandrum) and is a food lover. His only companion is his cook, Babu (Baburaj (actor)). Manu Raghav (Asif Ali (actor)) is Kalidasan's nephew who comes to stay with him, while looking for a job. Kalidasan has a normal life until he gets a mis-dialled phone call from Maya (Shweta Menon), a dubbing artiste living with her friend Meenakshi (Mythili). Maya rings to order a special Dosa (named "Thattil Kutti Dosa" in the film) from a restaurant, but gets Kalidasan instead. Their conversations do not go well at first, but a long-distance romance develops due to their common interest—cooking and food. Kalidasan is a born gourmet while Maya is indulging in culinary activities in memory of her dead mother. Kalidasan starts to let Maya into the secrets of baking with a multi-layered cake called "Joan's Rainbow".