Demons are spirits that do the work of the devil. However, sometimes they are used interchangeably. The devil is in the detail is an idiom that refers to a catch or mysterious element hidden in the details, [1] meaning that something might seem simple at a first look but will take more time.
The Devil Wears Prada Cast Where They Are Now
Devil is the ultimate evil spirit or the god of evil. Another popular way to use.
