90 ML is the story of Devadas (Karthikeya) who has a strange disorder called Fetal Alcohol Syndrome, because of which he is authorised to drink three pegs of 90ML alcohol three times a day to keep himself alive. One day, he falls in love with Suvasana (Neha Solanki), whose family would never approve of alcoholism. Will Devadas be able to win them over?