The head of Professor Wells is highly valued. Private detective Kirill Vatsura became convinced of this as soon as he became the professor’s bodyguard. Machine gun fire, a fire, some suspicious people following on their heels - everything suggests that a tireless and merciless hunt is underway for the professor. Who are you, Professor Wells? Kirill will have to visit a special psychiatric hospital, witness a monstrous explosion near Madrid, meet a pretty girl, and hijack a plane before he finds out the answer to this question.