A successful London Welshman after the Great War tells his grand-daughter of the madness that infects the family blood. A former inmate at Denbigh Asylum throws herself under a train. A woman made notorious by killing her own child prepares herself for release, and a businesswoman touring a derelict hospital is troubled by the lingering horrors of its past.

When Denbigh Hospital was opened in 1848, it was considered one of the most progressive and humane institutions in Wales, yet it was dogged by over-crowding and rumours of abuse. Now some of the leading writers in Wales tell its...