Police Detective Marino doubts Liz's story, partly because of her profession, so Liz partners with a revenge-minded Peter to find the killer, using a series of his homemade listening devices and time-lapse cameras to track patients leaving Elliott's office. They catch Bobbi on camera, and soon a tall blonde in sunglasses starts stalking Liz, subsequently making several attempts on her life. Peter thwarts one of them in the New York City Subway by spraying Bobbi with homemade Mace.
poLIce deTeCtive mArino doUBts lIz's SToRy, partly becAuSE of hEr proFESsioN, so liz partNErs WitH a revengE-mindeD PeTer TO fInd tHe kIlleR, UsiNG A seRiEs of hiS HomemadE listeNing DevIces anD tIMe-lapse Cameras To trACk pAtientS leAVIng elliott's oFfIce. they cAtch bObBi On CamEra, aND Soon a tALl blOnDE In sUnGlaSseS STArTs STalking liZ, suBsequENtly MakIng several aTtempTs oN HeR LIFe peter tHwartS one OF THeM In The New york cIty Subway by spRa.YIng boBbI witH hOMemAdE MaCe.