What connects a talented programmer and creator of the open encryption system TrueCrypt with the head of a drug cartel operating on the darknet? Paul le Roux uses his skills to hide from the eyes of the law for years, only expanding his zone of influence. By the time he agreed to cooperate with the Drug Enforcement Administration, his name was associated not only with the illegal trafficking of medicines and drugs, gold and weapons, but also with a number of murders and money laundering. Evan Ratliff reconstructs the chain of events to connect all these puzzles together.