Poisoned Chocolates Case

by Anthony Berkeley

Sir Charles cut some of the cackle

“I have always thought that murders may be divided into two classes, closed or open. By a closed murder I mean one committed in a certain closed circle of persons, such as a house-party, in which it is known that the murder is limited to membership of that actual group. This is by far the commoner form in fiction. An open murder I call one in which the criminal is not limited to any particular group but might be almost any one in the whole world.