 Kavanagh finds himself prosecuting a case for HM Customs. The case is anything but straightforward however. While 15 kilos of heroin was seized being smuggled in condemned meat, there is no physical or forensic evidence linking the drugs to any of the accused. One of them, Kevin Gregson, may have eliminated a witness in a previous case and he seems true to form when Kavanagh and his wife are threatened. Kavanagh suspects that not all is on the up an and as far as the evidence is concerned.