Indian American author Manil Suri grew up in a large crumbling apartment in Bombay (now Mumbai) which his parents, who were Hindu, shared with three Muslim families. Their single room, at times a refuge from the religious and territorial tensions pervading the apartment, was also a prison that held them captive. At age 20, Suri managed to break free and come to the US, where he finally found the freedom to embrace his sexuality and find a life partner. But the room, which still held his parents hostage, kept wrenching him back to Bombay. Eventually it was only his mother, Prem, left, who had staked all her happiness on her son but was unable to escape the room’s hold on her. When a rash of mysterious incidents seemed to beset the room, Suri realized how little time he had left to convince Prem that a happier life might await beyond the four walls that both enthralled and imprisoned her.

As Mumbai empties under the threat of imminent nuclear annihilation, Sarita, a thirty-three-year-old statistician, can only think of one thing: being reunited with Karun, her physicist husband. Why has he vanished? Who is he running from? How will they form the family of three he's always wanted? To find him, Sarita must journey across the surreal landscape of a near-abandoned city, braving gangs of competing Hindu and Muslim hoodlums.