Crimes in the field of computer security aren’t easy to uncover. Mstislav Bezdar—an IT analyst, the kind you find only a few of in the world—is known for that. His personal duel is with a hacker hiding under the handle Botanik. This time, a very large theft is being prepared in Vladivostok at one of the region’s enterprises. Hard work, selection from hundreds of objects, searching for the trail of malicious code “Black Machaon.” It’s all complicated. And it gets even harder when a woman is involved in the case.