Alexandra Southwood is missing. Held in a room against her will, she’s forced to imagine how her husband, Marc, and her two daughters are coping in the wake of her disappearance. She’s shown news clips of Marc standing in front of the cameras desperately appealing to the public for information on her whereabouts. In her solitude, she tortures herself with visions of her family’s devastated new reality. Marc’s pain is visceral. He thinks of nothing but his wife. When the police discover Alexandra’s bloody belongings by the river, turning their missing persons case into a murder investigation, he cannot accept that she is lost to him. He embarks on his own journey, through the dark maze of the art world that so gripped his wife, following a trail that leads him to find answers to questions he never wanted to ask.