Jekyll and Hyde

Recently, I've been noticing how often the phrase Jekyll and Hyde is used by newspapers to describe someone or something that can appear both good and evil.

This is from the Sun newspaper, about the Shannon Matthew's case which has gone to trial. Karen Matthews was accused of being sad one minute and cheerful the next.

It is used in another murder trial where a man is accused of killing his whole family. This article comes from the Telegraph





But it's not just murderers who can be described in this way. Football teams also earn this moniker.
Worcester City's manager is unhappy with the inconsistent and wildly differing nature of his team's performance:Finally,in a nod to pathetic fallacy, the city of Norwich is described as a Jekyll and Hyde place. A taxi driver was assaulted, he claims that the character of his town changes after nine at night.