Seventy five-year-old Biswanath Majumdar (Soumitra Chatterjee) is in the publishing business. His wife, Arati (Swatilekha Sengupta), is 66 years old and they have been married for 49 years. They are blessed with four children — the eldest being their son, Barin, followed by three more daughters, Malasree (Rituparna Sengupta), Kaberi (Aparajita Auddy), and Piu (Monami Ghosh), all of them now married (Malasree to Bijon, Kaberi to Jyotirmoy, Piu to Palash and Barin to Sharmistha) and well-settled. Internally, there’s trouble in the siblings’ married lives. Sharmistha, a medium-scale clothes merchant, is unhappy with Bijon’s financial position as his father’s assistant in the publishing house. Malasree doesn’t consider Sujoy, a musician by profession, to be smart enough for her and gets involved in an extra-marital affair. Kaberi is suspicious that Jyotirmoy, who loves his drinks, might be characterless. Palash, being involved in the film industry as a director, has very little time for Piu. While all that is going on in their lives, on the night of Vijayadashami after Durga Puja in their north Kolkata residence, in front of the gathered family, Biswanath Majumdar drops a bombshell. He declares that he has decided to divorce his wife, their mother, Arati. However hard the children try, they cannot extract any information from their father, while their mother seem most unconcerned about the announcement. Biswanath files a divorce case in court. The judge, however, asks them to spend a 15-day vacation together, after which if they want, they can mutually divorce. The family decides to spend this 15-day vacation at their Santiniketan residence. To know the real reason behind Biswanath’s decision, Barin and his three brothers-in-law place CCTV cameras in Arati & Biswanath’s room to eavesdrop on their conversation along with their spouses. As Biswanath and Arati share their long experiences of living together – their grudges, their disappointments and their delights, they realize that despite having very little or no emotional connection with each other for prolonged periods due to Biswanath’s busy schedule and Arati’s involvement with their family, they continue to care for each other. It’s drastically different from their children’s actions, who have adapted the modern lifestyle and are whimsical regarding their marital lives. As they see their parents, the siblings discover their own follies and in no time, love is rekindled with their spouses.