While investigating the murder of a gay man, Briscoe and Curtis discover the victim had been sexually harassed by an ex-boss.
When a pregnant ex-drug addict, who has been trying to stay clean, is found dead, the detectives suspect her boyfriend who is the son of a wealthy woman.
Dr Weaver thinks she may have found her biological mother; Dr Benton and Dr Corday compete for the same position; Lucy begins her first rotation in the psych ward.