Exhausted Ezhilan snoozes on the metro train. Antony captures this moment and uploads the picture on social media with a caption saying "drunkard on a public transport".

Ezhilan and his wife Tamil are both hearing and speech impaired. After spending two nights in the hospital where his daughter was admitted, Ezhilan travels back home on a Chennai Metro train but he falls asleep. Another passenger, Antony, finds this amusing and decides to post a picture of Ezhilan online, labelling him a drunkard. The rest of the movie explores the troubled Ezhilan and his family face when he is recognized by people as the "Chennai Metro Drunkard", as well as how Antony deals with the consequences of his actions.