Plot Summary:Following Lizzie's death Kavanagh takes on the case of a doctor, Felix Crawley, charged with killing his depressive,and unfaithful,wife Ann with an overdose of lithium. The doctor claims he has treated Ann in secret because of the shame of her disorder and the death was accidental. Kavanagh takes on prosecution witnesses,including Ann's lover and her young niece,whose advances Felix spurned, and,as the case draws to its verdict, comes to appreciate that he is identifying with his bereaved client.