Nadya Mitrofanova was happy: at last she and Dima had decided to build their family nest. After looking through many options, she found an absolutely perfect apartment. However, as soon as they crossed its threshold, Nadya immediately regretted her choice โ the seller turned out to be the dazzling mulatto woman Isabelle... Naturally, Dima did not remain indifferent to her charms, and when Isabelle called him in the middle of the night asking for help, he rushed to her without hesitation. As it turned out, someone had smashed an aquarium in the beauty salon where she worked and laid out figures of synchronized swimming from the dead fish. Isabelle had once practiced this sport, but could not remember anything for which someone might take revenge on her. There had, however, been one unpleasant incident during competitions in Japan, though she had long forgotten to think about it. But after some time, someone tried to kill Isabelle herself...