After a degree in Law and a stint as a journalist, Susan embarked on a career in television drama. She has written numerous scripts for shows ranging from Casualty and Heartbeat to Coronation Street and Eastenders. She created and wrote the London-based detective drama South of the Border of which the BBC made two series.
Her first novel, The Informant was published by PanMacmillan in November 2014, The Mourner followed in May 2015. The Killer is published in hardback in March 2017 and in paperback on the 29th June 2017.