Code-Breaker: The untold story of Richard Hayes, the Dublin librarian who helped turn the tide of WWII

The incredible true story of the librarian, the Nazi spy and Ireland's secret role in turning the tide of World War II

When unassuming librarian Richard Hayes, a gifted polymath and cryptographer, was drafted by Irish intelligence services to track the movements of a prolific Nazi spy, Hermann Goertz, Dublin became the unlikely venue for one of the most thrilling episodes in Irish history.

In a complex game of cat-and-mouse that would wind its way through the city and its suburbs, Code Breaker reveals how Richard Hayes cracked a code that helped turn the tide of World War II, and uncovers a secret history of the capital that has remained hidden in plain view for the past 70 years.