Ayearafterhermurder,thepolicere-openthecaseofYvonneHarrisonwhentheyreceiveananonymousletterimplicatingaburglar,HarryRepp,whoisabouttobereleasedfromprison.Supt.StrangeassignsthecasetoDSLewis,whoischafingatthebitawaitinghispromotiontoInspector.Morsehasbeenillandhasonlyjustreturnedtowork.HestepsonLewis...