Which of the respectable, wealthy guests who had gathered from all over Europe for an elegant celebration tried to poison the English lord, an old friend of Agent Drongo? Before any version arises, a murder occurs in a secluded villa - and then one more thing... Agent Drongo begins an investigation and quickly realizes that, in principle, EVERYONE present had motives to commit an assassination attempt, but CLEARLY NO ONE had motives for murder. However, something tells him: all three crimes are the work of ONE person...