A rich society matron admits to murdering her husband, which means she will hang. The husband's sister, a friend of Hester's, doesn't believe the wife was capable of doing it, so goes to Hester for help. She brings in Monk and Rathbone in this 3rd outing in the series. The wife refuses to talk, so the three must work on their own to find out if she really did kill him, and if she did, why. I won't give anything away here, but the trial, with Oliver Rathbone for the defense, is absolutely incredible and had me in tears. As someone else said, it's very dark, but also hopeful.