Thomas Wellmann is an electrical engineer at the municipal utilities in a small town and is replaced by an AI in his mid-50s. Then a prolonged power cut becomes the trigger for Thomas to prepare himself, his wife and his two daughters for an emergency...

Inspector Dupin finds himself entangled in several mysteries at once: the discovery of a corpse on a remote Atlantic island, the mystery surrounding a Celtic musical instrument, and the search for the true cause of a tragedy.