Emerging from a heart transplant, Florence, haunted by strange nightmares, feels the need to know the origin of her new heart. Despite the hostility of her husband Vincent, she investigates in secret and discovers that her heart belonged to Ana Daendels, a young Belgian who died in a car accident in the Basque Country. In view of the disturbing circumstances, his father Simon has just decided to embark on his own investigation, convinced that it is a murder... (thetvdb.com)