Every year they have met up for a vacation, but their time away is much more than just a bit of fun. Over time, it has become a lifesaver, as each of them struggles with lifes triumphs and tragedies. Sophie, Emily, Amy and Melissa have been best friends since they were girls. They have seen each other through everythingfrom Sophies private fear that she doesnt actually want to be a mother despite having two kids, to Amys perfect-on-the-outside marriage that starts to reveal troubling warning signs, to Melissas spiraling alcoholism, to questions that are suddenly bubbling up around the paternity of Emilys son. But could a lie that spans just as long as their friendship be the thing that tears them apart?