S4·E12 Besieged

When Rachel visits her old college to appear on a radio call-in show to discuss a series of ongoing sexual assaults on campus, the case takes a peculiar personal turn when the rapist repeatedly dials up to mock her on-air, prompting an ongoing mind game of cat-and-mouse between them. On other fronts, Rachel finds herself drawn again to an old flame (guest star Mark Dobies) who is now married to her good friend and later meets the therapist (guest star Joe Flanigan) assigned to her brother's drug rehabilitation. Likewise, George slips in his shaky bid to end his own addiction to painkillers.