Alicia and her colleagues face a moral dilemma when they must try to turn a client's son against his girlfriend, after both are accused of murder. Meanwhile, Diane asks Alicia to make a tough decision regarding the company's split.
Nate gives Maya 'one last look' at a memorial for Lisa, where some surprise discoveries ensue. David and Keith are inspired by a same-sex wedding; George agrees to Ruth's marriage stipulations; Federico is disturbed by the 'new and improved' Vanessa; Brenda crosses a bridge with her therapy client; and Claire and Billy develop something in the darkroom.
The shooting death of a likeable janitor leaves no visible evidence and no motive. The only peculiarity about the killing is that the murderer used mercury-tipped homemade bullets - which leads detectives to turn to an aging criminal for help.
