The film opens with the death anniversary of Sathya's (Ramesh Thilak) father. Having lost his father exactly a year ago, Sathya a paramedic, receives a call from an elderly person, who lets him know that he requires an ambulance as soon as possible. Sathya, along with another paramedic, rush to the old man's house in an ambulance and helps Kailasam (Vijay Sethupathi) to board the vehicle. In the process, he learns that the old man isn't fighting for his life as claimed by him earlier, but he is a heart patient nevertheless. As these three men begin their journey in the ambulance, Kailasam's grumpy and obstinate nature causes trouble to the paramedics and the course of their journey changes drastically.