Bashirudeen, known as Bachu, is an ambitious young man living with his mother and two sisters. His father, Kamar, has worked in the Middle East for 26 years but plans to return due to his declining health. The family pressures Bachu to take up his father's job under Ismail, his employer, but Bachu is determined to build a business at home. He runs a small-scale event company renting wedding equipment but struggles financially, owing investor Rajesh a profit share he couldn't pay due to COVID-19 restrictions. He keeps promising better returns once business picks up.
Meanwhile, Bachu's married sister Bushara is staying at their house due to marital issues. She secretly gives her necklace to her friend Vijeesh to pawn during an emergency. When the lockdown starts, this incident blows up, leading authorities to track Vijeesh's movements for possible COVID-19 contamination. Bushara's husband, Rashid, feels humiliated as she handed the jewelry to a male friend without his knowledge. Kamar, calling frequently from Qatar, urges Bachu to reconcile them, which irritates him, so he avoids talking to his father.
Bachu's former love, Baanu, now lives in Qatar with her husband, a marriage Bachu couldn't pursue due to his unstable career. Hoping to profit from the pandemic, he buys masks in bulk, funding the purchase by pawning his friend's wife Sumi's jewelry. After small sales, he secures a large order through Vijeesh's boss. With the payment, he repays Rajesh partially, hoping for future investments, and gives money to his mother to prove he doesn't need to go abroad.
Rashid arrives with mosque elders for a reconciliation, but when Bushara demands an apology for being doubted, he storms off. Their mother, increasingly worried, confides in Kamar, who struggles with worsening health and arranges to return on the Vande Bharat flight.
Trouble arises when the masks turn out defective. Vijeesh's boss demands a refund or legal action. Bachu tries to repair them and track his supplier, but the man is quarantined. Meanwhile, Sumi is due for delivery, and her jewelry must be returned. Under pressure, Bachu argues with his father over the situation. Kamar, frustrated, informs Bachu he is returning soon.
Desperate, Bachu agrees to work abroad and borrows money from Ismail, retrieving the pawned jewelry. On his way home, police stop him for not wearing a mask. While arguing, he receives a call—his father has died of a heart attack in the Gulf a day before his scheduled flight. The family is devastated, waiting for his body's return.
With COVID-19 cases surging, body transport halts. Bachu, under pressure to allow cremation abroad per religious customs, fights to bring the body back, fulfilling his mother's wish to see Kamar one last time. After days of uncertainty, he secures clearance, but health officials restrict the reception to five people, prohibiting senior citizens. When the ambulance arrives, Bachu stops it outside their house, but medical staff refuse to let his mother see the body. A tense argument ensues until she insists they proceed to avoid further trouble. Eventually, she is permitted at the cremation site, wearing PPE, where she and Bachu perform the last rites.
Seven months later, Bachu and Baanu are together, raising her child. As they pass an election rally with a massive crowd, Bachu smirks sarcastically at the irony of the so-called protocol restrictions.