Twinkle Toes
Growing old disgracefully
The plan was that Shannon would go "missing", and a newspaper would put up a reward (in this case, £50k from The Sun). Shannon was then going to be released in Dewsbury Market, whereupon - in view of all the CCTV cameras there - she would be "found" by this uncle who had kept her drugged and captive for however long he'd kept her at his flat.
He'd then pick up the £50k reward, split it with the lovely Karen, and everyone goes home happy.
Indeed, beautifully summarised there Easy. It sounds like the sort of 'Cunning Plan' that even Baldrick would've rejected. What a pair of truly vile, irredeemable dip-shits.