The doctor couple Ujan and Jagri have been in love since their first days in college. They studied together and also did leftist politics. Later, Ujan is the number one pediatrician in Kolkata and a full-fledged corporate doctor. Jagri has associated himself with the Navodaya Hospital, which is run by ultra-leftist doctors. Their only child, Rohan, has asthma. In middle age, Ujan and Jagri's marriage has come to a standstill. From the outside, it seems that there is an ideological conflict at the root, but both of them know that their relationship is dying. The two plan to visit Puri to find love again. At that time, Cyclone Fani hits Puri. Will Ujan and Jagri be able to get out of the cyclone of ideology, relationship and nature? The people closest to Simon Biswas, who lost his parents and homeland, are his grandmother Kamala and his lover Lahma. Along with this, there is a complex illness and depression. Grandfather Michael Kanai Biswas is a notable name in the history of the Communist Party of India. Suddenly, Swadesh finds a diary in his grandfather's house. The owner of the diary is Major Tom, a surgeon who went to fight in Vietnam. What is in that diary? How are the napalm bombs, tunnel war, Agent Orange of the Vietnam War in the seventies of the last century and the racism, religious intolerance, and violence of Kolkata in the twenties of the new century connected through the diary? Who is winning in the tension between war and love?