Grégory Lioubov, alias Moïse, is a Russian intelligence officer stationed Monaco to observe the activities of a powerful businessman. Alice, a financial whiz, is recruited to serve as an undercover operative on the same mission. Suspicious that Alice may betray them, Grégory breaks the golden rule and contacts her. A forbidden passion erupts between them that will inevitably precipitate their downfall. Some flashing lights sequences or patterns may affect photosensitive viewers.