A teenage boy, who died in a freak accident after learning he was adopted, seeks Melinda's help in finding his birth mother.
Detectives investigate the bludgeoning death of a young woman; Sipowicz needs help from Detective Diane Russell (Kim Delaney) to persuade Adrian Caffee to testify against her parents.
McDowell and Sipowicz investigate Frank Colahan's parents to keep them from getting custody of the baby; someone attacks Haywood in her apartment building.