Bizarre flat layout leaves viewers scratching their heads

Actor Jamie Wilkes, who recently starred in His Dark Materials, took to Twitter to share the bizarre scene after stumbling across the 'hidden escape route' while house-hunting in London. https://www.dailymail.co.uk/femail/article-9038187/Bizarre-flat-layout-leaves-viewers-scratching-heads.html?ns_mchannel=rss&ns_campaign=1490&ito=1490