Emer's work as a screenwriter has won or placed in several script initiatives here and in the US. Her feature thriller The Agreement received development funding through Northern Ireland Screen and the UK Film Council. 

Her TV drama, The Siege, is in development with Ecosse and she has been contracted by Lorenzo di Bonaventura to do a rewrite of an LA action thriller feature. She is also currently working with BBC Studios on an episode of Silent Witness as well as original crime drama West End Central.

Emer's two crime novels, Virtual Stranger and Five Dead Men, described by the Times as, 'frighteningly realistic' were published by Headline.