What's Up Bai (2018)

While Natraj, popularly called Nutty by his friends, and Jessi are home, Nutty’s mother calls him to tell him that he will have to meet a girl suggested by their family astrologer for marriage. However, Nutty is not ready for marriage yet. Will he buckle under his parent’s pressure?

Nutty reluctantly agrees to meet Laks, the girl his family astrologer has found. Jessi tries her bit to convince him. He is pleasantly surprised when Laks sends him a message. As the conversation goes well, Nutty is looking forward to meeting her.

Laks and Nutty meet at a coffee shop where she is accompanied by her uncle and this irks Nutty. The couple get to know a few things about each other. While leaving, Laks’ uncle informs Nutty that they will call him soon.

Laks' family agrees to meet Nutty at his home. Meanwhile, Nutty and Jessi have an argument during which he tells her to leave. Seshadri uncle comes to help Nutty. The meeting takes an unexpected turn and Nutty's good boy image comes under a cloud of doubt. However, Laks is still impressed and gives her number to Nutty.

As the girl and boy like each other, the families agree to go ahead with the marriage. Nutty's parents come down from the US and Jessi takes charge as the main wedding planner.

As Laks settles down in the new house, she finds that she is way too old fashioned. She feels left out when Bi, Jesssi and Nutty talk about social media, memes and other stuff. When Nutty is invited to a gamer’s conference in Mumbai, he asks Jessi to take care of Laks.

Cable Murugan sneaks into the house to upload pirated movies. Jessi and Laks are stunned to discover him and they call Rocky to intervene and hand him over to the cops. Laks bonds with Jessi and realises that she is an inspiring person and develops a liking for her.

Laks is still unsure about why an educated girl like Jessi wants to be a house maid. Both Bairavan and Rocky give her their versions of Jessi's story which sound fake. So Laks decides to ask Jessi herself. After listening to her original story, the two women have a good laugh.

While Jessi, Laks and Nutty go out for dinner, Rocky arrives and has a heated argument with Jessi. A mini-break up ensues.

More chaos follows when a lady comes home with a kid and calls it Nutty's child. The situation gets tense and Nutty is kicked out of his own house under the suspicion of having an extramarital affair.

Rocky comes home and learns about the chaos in Nutty's life. He watches a news clip informing viewers that a sleeper cell is planning coordinated terrorist attacks across the state. Rocky swings into action to nab the terrorist.

Rocky has a scary dream where he is abducted and murdered by two terrorists who look like Jessi and Biravan. Can Rocky find the real terrorist?