A visiting vaudeville show has a grotesque murder and a young comedian, Charles Chaplin, may have been the intended target by the killer who is intent to finish the job.
Inspector Brackenreid learns that his youngest son, Bobby, is wanted for murder, while the Murdochs and Crabtree suspect old enemies are returning to harm them.
A part time university student is found dead with electrical burns on the head and two newly arrived American psychology professors with a penchant for unusual experiments may be responsible.
While the Murdochs investigate a series of murders at a country inn while on vacation, Crabtree and Higgins investigate a beheaded accountant in a community garden.
The Murdochs, Const. Crabtree and Inspector Brackenreid are all lured and trapped in a series of special escape rooms, and forced to play a deadly escalating deathtrap game of riddles.
