things were missing from the house except for her passport. so the obvious question -- did you have the feeling that this is a woman who might have just up and left? >> we had to look at all possibilities. you have to keep an open mind when you start on these investigations because we had at that point very limited information on who wendy was. >> where do you start? maybe a phone call to wendy's family back in the states. >> and i hear this story and think for crying out loud, she's done it again. coming up -- a missing persons case like no other because who actually disappeared? wendy or a second personality some say lurked inside? >> we asked them, what is going on? he said, that's not wendy. that's shawna. when she does that, she's shawna. >> i met shawna. she was driving a very fast, very expensive car.