Liz, Aiden, and Sylvie are an urban, urbane, progressive family: Aiden's a therapist who refuses to own a car; Liz is an ambitious professional, a savvy traveler with a flair for decorating; Sylvie is a smart and political 19 year-old, fiercely independent, sensitive to hypocrisy, and crazy in love with her childhood playmate, Noah, a bright young scientist. Things seem to be going according to plan. Then the present and the past collide in a crisis that shatters the complacency of all three. Liz and Sylvie are forced to confront a tragedy from years before, when four children went missing at an artists' retreat. In the long shadow of that event, the family is drawn to a dangerous precipice.