In Riviera, the immaculate life of art curator Georgina (Julia Stiles) is blown apart when her collector husband Constantine Clios is killed in an explosion aboard the yacht of a Russian oligarch. Believing there is more to the tragedy, she sets out to uncover what happened. She finds dark truths about Constantine's dealings.



As she begins to realize who she was really married to, Georgina enters a spiral of moral descent. She becomes immersed in a world of lies, double-dealing, and criminality. She enlists the help of Constantine's son Adam (Iwan Rheon) and befriends his ex-wife (Lena Olin). In order to maintain the Clios' legendary Côte d'Azur mansion and protect the family and its vast fortune, she will have to learn to adapt, survive, and ultimately thrive in her dangerous new reality. As she first proved back in her days as a fine art scholar in the US, she's an A-plus student....