Sir Derek Jacobi stars as Brother Cadfael, the intuitive crime-solving monk of medieval Shrewsbury, in this murderous tale from the popular PBS g-british, g-mystery! series. Cadfael must investigate the murders of two visiting merchants who upset the festivities in Shrewsbury. Local tradesmen have plenty of motive for murder, but Cadfael suspects something more than just greed and jealousy at play. When the true cause of the violence is exposed, Cadfael finds himself at the wrong end of an old friend's sword.