Hannah tries to hide mounting anxiety about her book from her visiting parents. Marnie is stunned to learn that Charlie has started a successful app company; at AA, Adam meets a boisterous woman who coaxes him into dating her daughter, Natalia ; and Ray's aversion to college parties gives Shoshanna pause.

To avoid being sued by her publisher, Hannah must write her book in a single day. Marnie misinterprets Charlie's intentions; Ray makes a career move that he hopes will impress Shoshanna.