The idea is to get people moving around the room questioning anybody they think might be involved. Every clip is there for a purpose. 

Some scenes might reveal the discovery of a body or perhaps two or more people are having an important conversation.  Sometimes what the people say in a video clip is a red herring but the time shown on a clock could be all important.

Some clips are included to provide valuable information about certain characters, but whatever the content each clip needs to be watched and listened to carefully if the teams are to get the most from it.

The video gives the opportunity to portray complex or gruesome murders which could not be performed 'live'