Through the Keyhole - Season 5 Episode 4 -

Keith Lemon rummages around three more mystery celebrity houses to unearth clues for his studio panel to guess at the answers to one crucial question - 'Who habitates in a house like this?' The star-studded panel for this edition of the madcap programme are presenter Stephen Mulhern, 'X Factor' judge Louis Walsh, and pop star Rochelle Humes.