The TV series "Aquamarine" is a Russian melodrama about the life of Marina, a wealthy heiress. Marina's father is the owner of a gold mine, a successful and wealthy businessman. The heroine has money, influence, and a desirable fiancé named Anton. However, she doesn't feel happy because she has never had a complete family or true love. One day, an accident occurs at the mine, and Marina is forced to get involved in family affairs. She goes on a business trip and meets a simple guy named Egor.