When in гримерке after a performance find the body of the known comic actor Дариуса on a nickname Cyclop, for investigation undertake journalist Лукреция Nemrod and her old friend Isidore Каценберг. Only from all they suspect that Cyclop died the not death. Reveals very soon, that the mysterious association of GHL is complicit in an incident. In addition, they find some small box content of that carries death to every opening him. And it appears yet, that a laughter is the phenomenon where more enigmatic, difficult and dangerous, what it is accepted to consider. Can a laughter kill really?