This summary provides an overview of the book "One Night @ the Call Center" in 3 sentences: The book follows six call center employees experiencing personal crises as they work through their worst night, until a phone call from God changes their lives by revealing the reasons for their misery and how to overcome it. Each character faces their own challenges - for example, Esha desperately tries to become a model but faces rejection, while Shyam is passed over for a promotion. In the climax, the characters get into an accident but survive, and the call from God allows them to improve their work lives and relationships.