look, they've been sedating these kids since birth because the kids were more overwhelming than they ever imagined and they fucked up. madeleine overdosed. and now they're screwed. if found out, they will go to prison, lose their medical licenses, lose their twins, and possibly their family who may disown them. so they concoct an abduction story to save themselves since it was accidental and they're not murderers and figure it will stick. they didn't anticipate that the portuguese police are NOT dolts and have pieced this together and been careful and realize the killers are staring them in the face. the parents ARE a little too stone faced and scripted, aren't they? they didn't mean to do it, but they need to own up to this fast since it's looking very very bad for them. there is no abductor. they just oversedated her and paid for it and she's buried somewhere around the church. if they find this girl's body, the parents are toast.