Cathy Lind Hayes

Charlie's ex-boyfriend interviews Ross for a grant; Chandler lies to Joey about his audition tape.

Mysteries of the heart (and the meddling of others) unfold as Valentine's Day nears.

A patient will not last the night without a heart transplant.

In order to protect his best friend and main informant, Deeks resumes a former alias that he dislikes.

Judge Byrne presides over a case that requires a disproportionate mandatory minimum sentence; Allison represents a charming defendant in a fraud case; Leonard struggles to decide whether to bring charges against a political figure.

The truth is in short supply, as Meredith and Cristina lie to each other about the status of their relationships, George is given the unpleasant task of discharging an elderly patient who is no longer sick but refuses to leave the hospital; and Alex learns his fate after re-taking his medical exams.