S1·E9 Eye of the Haunted

Dr. Rhodes' girlfriend, a fellow university professor named Diana Parker, is murdered in the park by a shadowy figure. Rhodes meets Diana's twin sister, Terri, and learns that the same killer may be stalking her. A disturbed young man, whose mother is a mind reader, is also a powerful psychic who hears the thoughts of others. He is desperate to silence Terri - a woman he believes to be the returning spirit of Diana.