Two childhood friends: one 'killer', one cop.
Ginnie says she is a serial killer who kills people who have wronged her. No one believes her.
Author Fiona Taylor is writing Ginnie's memoir, The Killer Inside, trying to understand why Ginnie should still insist that she's a killer. She recruits ex-DI, Tom O'Brien, to examine the evidence. As Ginnie's oldest friend, Tom has his own insights into her story.
As her memoir unfolds will the decisions taken by Fiona and Tom put them and their families at risk?
Is it safe to release a self-confessed serial killer back out into society, even if there is no evidence against her?