The Medavoys have split up again: Greg (Gordon Clapp) leaves home and camps out at the precinct station, while Marie (Deborah Taylor) finally meets her husband's "significant other," Donna (Gail O'Grady). A curious tattoo leads Sipowicz (Dennis Franz) and Simone (Jimmy Smits) to a Chinese gangster, the former boyfriend of a murdered teenage girl. And while investigating an assault case involving a wheelchair-bound woman (MacKenzie Phillips) and a man claiming to be a cop, Martinez (Nicholas Turturro) learns the truth about the allegedly gay Adrianne Lesnick (Justine Miceli). ~ Hal Erickson, Rovi