This week on History Happy Hour: It sounds like an episode of “Foyle’s War” come to life: murder and violence in wartime London, carried out under the cover of the wartime blackout imposed to protect against Nazi bombings.

Chris and Rick tackle the real story of murders carried out as Nazi bombs blew the city apart with our guest, Amy Helen Bell, author of “Under Cover of Darkness: Murders in Blackout London.” How war exposed people to violence not only from the enemy.

Sunday at 4PM ET on History Happy Hour, where history is always on tap.

Amy Helen Bell is professor of history at Huron University College, University of Western Ontario. Her research focuses on the social and cultural history of twentieth-century Britain, particularly London. She is the author of Murder Capital, London Was Ours, and Life Sentence.