Murder convict Sean Hennessy is released from prison to return to a seaside community in Dublin. He has always professed his innocence. But within months of his release, two bodies appear in the peaceful suburb of Clontarf.
With a TV documentary pushing the public's sympathies in Hennessy's direction, the original evidence against him is called into question and Detective Frankie Sheehan finds herself doubting her original analysis of the case. But when another, fresh victim connects the two cases and the threat closes in around her family, Sheehan must look deep within herself in order to spot the killer who hides in plain sight.