|Root of Evil|
|ITV broadcast date|| 28th September 1988|
|Previous episode||Dead Giveaway|
|Next episode||Double Jeopardy|
Root of Evil is an episode in series 4 and aired 28 September 1988.
Taggart goes to the Glasgow Garden Festival. A loan shark is then murdered brutally with an axe. Jim Taggart and Michael Jardine are then brought in to help solve the murder. Jardine starts a relationship with a woman called Julie, who is playing Lizzie Borden in the studio that owns the axe (the murder weapon). Jardine and Taggart investigate to find out more. Will Michael Jardine be safe?