The children of a Vietnamese couple who were killed in their own restaurant along with several other people tell the authorities that one of the victims -- and one of the killers -- were both cops. The officer suspected of pulling the trigger, Antoinette Perry (Camille McCurty Ali), may have been unqualified for her job, but was forced upon the Baltimore PD by affirmative action and an influential father -- who turns up dead himself before long. Meanwhile, Falsone (Jon Seda) is frustrated by the departmental coverup that has ruined the case against drug dealer Georgia Rae Mahoney, and Ballard (Callie Thorne) develops a peculiar allergy. ~ Hal Erickson, Rovi