Russian Dolls is the sequel to Spanish Apartment, and takes place five years after their summer together in Barcelona.
Xavier (Romain Duris), William (Kevin Bishop), Wendy (Kelly Reilly), Martine (Audrey Tautou) and Isabelle (Cecile de France) reunite for a wedding in St Petersburg, their carefree days behind them, and now close to thirty.
Xavier is a struggling writer who dreams of having the perfect career and the perfect woman. He is still in touch with his ex-girlfriend Martine, but is living with Isabelle , now a successful gay stockbroker.
When he has to find a British writer to work with him, he goes to live and work with Wendy in London. Dividing his time between London and Paris, where he is ghostwriting the memoirs of a sexy and spoilt 24 year old supermodel, Celia (Lucy Gordon), Xavier struggles with his attraction to both women, slowly realizing he must grow up.