Ahaan is a family drama and a touching tale of an endearing young man by the name of Ahaan (Abuli Mamaji) with down syndrome who comes in contact with a self-indulgent man Ozzy (Arif Zakaria) suffering from OCD and has been separated from his wife due to the same reason. An initial awkwardness between Ahaan and Ozzy progresses into a friendship, which leads to a new lease of life for both giving ways to a life-transforming experience.