now anthony curry must have felt like he was living one. had been cast as the lead actor in an elaborate sting, a dangerous ruse crafted to get a mutual friend of his and sarah stern's to implicate himself in her disappearance. keith morrison (voiceover): the detective scripted a phone call, designed to get anthony's friend talking. the teenage filmmaker would pretend he needed money to replace a broken camera. if his buddy had gone through with his plan to rob sarah, he should be flush. police recorded the call. happen? >> dropped it on the shoot. it fell into a bucket of blood. >> damn. >> yeah, dude, i have, like, no cash. cash. >> keith morrison (voiceover): the friend wouldn't say much more. he seemed cautious. keith morrison (voiceover): but anthony did get the guy to agree to meet in person. maybe he'd open up then. keith morrison (voiceover): the location, this parking area aside the boardwalk in bradley beach, desolate in the dead of winter. investigators wired up anthony's car. we do set up the car for audio and video. is there a