Belfast, 1995. When an elderly couple fall to their deaths from the city’s notorious Ashton Tower, the incident is quickly ruled a suicide. For most, it’s a tragedy. For British Intelligence, it’s the beginning of something far more dangerous.

Jones and Jenny, now seasoned members of MI5’s Young Communicators Unit, find themselves pulled into an investigation that reaches back to the Second World War. The case sees Jones return home to Suffolk, where he must handle the strange story of a homeless war veteran, who is still hiding from something.
What begins as a routine inquiry soon exposes buried loyalties, forgotten operations, and a web of deception that comes to an extraordinary conclusion.

As police investigators, MI5 officers, and retired spymasters circle the truth, an ex-Mossad agent reopens old wounds. But someone is determined to keep the past buried, no matter the cost.
Set against the tense backdrop of 1990s Northern Ireland, Deep Swimmers is a gripping espionage thriller about the deadly legacy of covert lives and the price of keeping secrets.

Some falls are accidents. But hiding from the truth is a deadly game.