Plot: Becker urges that the firm employ a security consultant in constructing a ""safe room"" for the employees, then falls prey to the innovation when he and Denise get locked in it after hours. Meanwhile, Kelsey and Halliday square off against each other while they are representing Karl Bullon, a self-righteous department store employer being sued by an ex-employee for eavesdropping on her who was having an extra-marital affair with a co-worker, where Halliday learns a courtroom lesson while cross-examining a witness