Invention Convention lots of new inventors and their new inventions.
Lots of new products at this inventors Convention consists of a ironing board, a coffee distillator - a machine that makes more than one cup of coffee, a remote that turns on lights, a paint dispenser, a math calculator, a I-messenger, a suction cleaner like a vacuum cleaner, a swivel tray on ball bearings and a Truthizer by Officer Crabtree that is like a lie detector (very humorous). Alexander Graham Bell is also there.
Murdoch is invited to this convention by Karl Shreyer the man that wins a award for his invention. Karl Shreyer is then shot in the head and dies.
This episode is complicated. Murdoch talks to these inventors who all have their own equations about their invention and how Shreyer is killed because no murder weapon was found. Murdoch suspects a conspiracy between the inventors who disliked the man killed.
Brackenreid, Murdoch's boss has a bad toothache and is doing everything to avoid the dentist. He puts cocaine on his toothache and then heroin. The cops are afraid he is going to get addicted to cocaine as in a previous time.
Brackenreid's wife is very assertive and bossy as all the women in this series. They act like they are smarter than everyone especially Dr Grace the coroner. Mrs Brackenreid won't let her husband escape the dentist but he has a plan with Officer Higgins to call him on fake emergencies to get him out of the dentist chair.
Parts of this episode is very humorous and lots of mystery.