Sipowicz and Simone probe the stabbing death of a Chinese girl; Martinez partners with Lesniak for a robbery case; Medavoy leaves his wife again.
Malone and the team search for a 911 operator who goes missing after receiving a threatening phone call from a man who asked for her by name.
Maya tries to prove to the kids that she doesn't exist to solely serve them; Kenneth finds JJ a job; JJ finds an unlikely rival; Ray informs parents about his classmates' social lives and gets in too deep.