Important businessmen are dying of heart failure and certain members of the financial world are making a killing as a result. Steed and Emma investigate a twisted trail of leads that involve bankers, brokers, bleepers... and fine wine!

One of the series' best episodes ever. The plot is intelligent, the script is sharp, and there are enough twists and turns to keep you entertained for the entire hour. A shame more of the later episodes were not like this.

Frederick Yuill (played by Gerald Sim) swallows--while he's dead! Look for it while Emma examines him.

  - Courtesy of David K. Smith / The Avengers Forever

And speaking of Yuill, he is introduced to Steed (as well as being listed in the credits) as Frederick Yuill, but Steed later refers to him as Brian Yuill when speaking to Jago.