Lera was grieving the death of her grandfather, a well-known scientist. The only comfort was that he asked his student—Arseny, Lera’s husband—to finish his last promising project. But the files ended up with Arseny’s other student—his boss, Egor. Egor isn’t a genius scientist, but he is a talented intriguer and intends to present Lera’s grandfather’s idea as his own. When Arseny finds out, he decides to stop his former friend and punish him for his treachery. But at that very time, one of the company’s employees—where Arseny works under Egor’s direction—was murdered. Is there a connection between these events?...