When Milla is hired as a nanny to allow Siri to work her long hours at the restaurant she owns and her husband, Jon, to supposedly meet the deadline on his book, life in their idyllic summer community takes a dire turn. One rainy July night, Milla disappears without a trace. After her remains are discovered and a suspect is identified, everyone who had any connection with her feels implicated in the tragedy and haunted by what they could have done to prevent it.