Our Heroine, 22, is a journalist, she is sent to New York to report on Olivia, a young entrepreneur among the 30 under 30 in the environment category. Problem: She is not at all happy to have been sent to NY. She knows the city, she came two years earlier to visit her cousin, Julia, but things went wrong and she left in a hurry. She wants to complete this report quickly but of course, it's not going to be that simple. She meets John, Julia's boyfriend, who is surprised to see her back, and then Mehdi, who makes it clear to her that she is not welcome. All of them require explanations: where is Isaac, Mehdi's brother, who has not given a sign of life for two years, gone? She is the last person to have seen him alive during a very drunk evening... She would love to answer them but she has no idea. She has no memory of that evening, or even of the days before that. Stuck in NY for a few more weeks, she has to face her past and starts following in Isaac's footsteps, especially as the memories slowly come back... At her side Jonas, Mehdi, Mel, Fox and two charming boys: Nico and Maxime.