Teenager Anna (Haniya Nafisa) loves music and wants to pursue it professionally. Dr. Joseph (Vinay), Anna's father, is supportive of her decision, but Susan (Nayanthara), Anna's mother, is opposed to the idea of sending her daughter away to foreign school at such a young age.

A lockdown was announced due to the rising number of COVID-19 cases the day after this conversation takes place in their home.

Dr. Joseph contracted COVID-19 while caring for his patients, and he ultimately passed away from the disease. A few days into the quarantine, both the mother and the daughter have tested positive for the virus.

Anna's grandfather (Sathya Raj) learns that his granddaughter is possessed during a video call. Susan's response to this challenge drives the rest of the plot.