Sumi is this 33-year-old woman who couldn’t pursue her career as a teacher as she was forced to take care of her mother. Sunil was a failed B.Tech student who wanted to start a gaming parlor, but his father never really supported him. After getting a job in the bank, Sumi’s colleague introduces her to the world of Facebook, and Sumi uses a fake date of birth. Sunil, on the other hand, had entered Facebook at a very young age with a fake date of birth. Things that happen in the life of these two when their friendship evolves into a married relationship are what we see in Paalum Pazhavum.