The main character of the series "Love and the Sea" is Marina, a masseuse who works with her beloved husband at a sanatorium on the Black Sea coast. Over the years, their passion cools down and her husband starts looking elsewhere. Just then, a self-assured seductress named Elizaveta arrives at the sanatorium, determined to steal away the "married man" out of sheer interest. Marina's friend advises her not to create scandals, but to behave wiser: pretend that she knows nothing and make Alexey jealous.